please try not to use excel and show the equations used in each step thank you

ba ii plus is okay as long as steps are listed thank you again

2. A one-year zero-coupon bond has an annual yield of 6.25%. A two-year zero-coupon bond has an annual yield of 7.00%. A three-year zero-coupon bond has an annual yield of 7.50%. A three-year 12% annual coupon bond has a face value of $1,000. Find the yield to maturity on this three-year 12% annual coupon bond