please help, it keeps saying im getting the wrong answer but im not sure what it really is.

Suppose Compco Systems pays no dividends but spent $5.17 billion on share repurchases last year. If Compco's equity cost of capital is 12.2%, and if the amount spent on repurchases is expected to grow by 8.5% per year, estimate Compco's market capitalization. If Compco has 6.9 billion shares outstanding to what stock price does this correspond? Compco's market capitalization will be $ billion. (Round to two decimal places.)