Finding the Third Proportional to 462,456 and 690,552

Step by Step Solution

1. Step 1: Write the proportion equation
   462,456 : 690,552 = 690,552 : x
2. Step 2: Convert to fraction form
   462,456/690,552 = 690,552/x
3. Step 3: Cross multiply
   462,456x = 690,552 × 690,552
4. Step 4: Simplify right side
   462,456x = 476,862,064,704
5. Step 5: Solve for x
   x = 476,862,064,704/462,456
6. Step 6: Final answer
   x = 1,031,151.21