Company does not currently pay dividends. the company will start with a 0.50 dividend at the end of year 3 and grow it by 10% for each of the next 6 years until it reaches nearly $1.00. After 6 years...

Company does not currently pay dividends.  the company will start with a 0.50 dividend at the end of year 3 and grow it by 10% for each of the next 6 years until it reaches nearly $1.00.  After 6 years of growth, it will fix its dividend at $1.00 forever.  if you want a 15% return on this stock, what should you pay today given this future dividend stream?