The purpose of the research is to obtain empirical evidence about the impact of profitability, company size , capital structure on firm value. And the other purpose of this research too is to determine the effect of profitability, company size on firm value mediated by capital structure.  The sample in this research is manufacturing company on Miscellaneous industry sector which listed in Indonesia Stock Exchange during the period of 2012 –2019. With using  purposive sampling data this research got  twelve companies as sample research. The source of the data of this research was conducted from annual report and financial report.This research is using quantitative approach with path analysis method and using SmartPLS 3.0 as analyisis tool.The result in this research has two kind of result,for direct result found that profitabilty has significant positive effect on firm value, company size has significant positive effect on firm value, capital structure has significant negative effect to firmvalue. And the result for indirect result are Capital structure is able to mediate profitability on firm value. But on the other hand capital structure is not able to mediate company size on firm value.
                        
                        
                        
                        
                            
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