$2\mathrm{.}105$ A build$-$to$-$operate $($BTO$)$ company signed a contract to operate Alamosa County

industrial wastewater treatments plants for the next $20$ years. The contract will pay the

company $$2\mathrm{.}5$ million now and amounts increasing by $$200,000$ each year through year

At an interest rate of $10\%$ per year, what is the present worth now? $***$Solve using a spreadsheet$***$