Finding the Third Proportional to 647,082 and 862,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   647,082 : 862,057.50 = 862,057.50 : x
2. Step 2: Convert to fraction form
   647,082/862,057.50 = 862,057.50/x
3. Step 3: Cross multiply
   647,082x = 862,057.50 × 862,057.50
4. Step 4: Simplify right side
   647,082x = 743,143,133,306.25
5. Step 5: Solve for x
   x = 743,143,133,306.25/647,082
6. Step 6: Final answer
   x = 1,148,452.80