Finding the Third Proportional to 729,016.50 and 981,396

Step by Step Solution

1. Step 1: Write the proportion equation
   729,016.50 : 981,396 = 981,396 : x
2. Step 2: Convert to fraction form
   729,016.50/981,396 = 981,396/x
3. Step 3: Cross multiply
   729,016.50x = 981,396 × 981,396
4. Step 4: Simplify right side
   729,016.50x = 963,138,108,816
5. Step 5: Solve for x
   x = 963,138,108,816/729,016.50
6. Step 6: Final answer
   x = 1,321,147.20