Finding the Third Proportional to 243,655,582 and 531,960,499

Step by Step Solution

1. Step 1: Write the proportion equation
   243,655,582 : 531,960,499 = 531,960,499 : x
2. Step 2: Convert to fraction form
   243,655,582/531,960,499 = 531,960,499/x
3. Step 3: Cross multiply
   243,655,582x = 531,960,499 × 531,960,499
4. Step 4: Simplify right side
   243,655,582x = 282,981,972,496,328,992
5. Step 5: Solve for x
   x = 282,981,972,496,328,992/243,655,582
6. Step 6: Final answer
   x = 1,161,401,557.78