How to show average time in hh:mm:ss instead of decimal value

Hi ,

I want to show the average resolve time for the issues handle by user. So i have a column which has the Total time take for resolving an issue in hh:mm:ss format. However when i create an average resolution time by dax it populates this value in decimal point instead of the hh:mm:ss. I want to put this average resolution time in a line anc clustered column chart under Line values and show this data in hh:mm:ss format.Could you please advise how i can show in the lines values in hh:mm:ss format.