Please solve this by hand and without a spreadsheet or excel. I will dislike the answer if you just copy and paste an excel

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