I don't understand how you get 26.12 from that steps to get it would help thanks

Question 13 Kean Corporation Dividend: $1.5 12/31/2021 Cost of Equity (Discounting Rate): 12% Using the dividend discount model, assuming dividends grow at 10% per year for the next two years and at 5% thereafter, what is the value per share of Kean Corporation at 12/31/2021. Assume that you receive the first dividend of $1.5. Show your calculations 26.12