Trying to learn how to do it in excel specifically so please show functions!

The current stock price of TransContinentalAirways is $65 per share. TCA currently pays an annual per-share dividend of $3. Over the past 5 years this dividend has grown annually at a rate of 23%. A respected analyst assumes that the current growth rate of dividends will hold up for the next 5 years, after which dividend growth will slow to 5% annually. Use the twostagegordon function to compute the cost of equity.2