Finding the Third Proportional to 361,007,496 and 558,071,564

Step by Step Solution

1. Step 1: Write the proportion equation
   361,007,496 : 558,071,564 = 558,071,564 : x
2. Step 2: Convert to fraction form
   361,007,496/558,071,564 = 558,071,564/x
3. Step 3: Cross multiply
   361,007,496x = 558,071,564 × 558,071,564
4. Step 4: Simplify right side
   361,007,496x = 311,443,870,545,406,080
5. Step 5: Solve for x
   x = 311,443,870,545,406,080/361,007,496
6. Step 6: Final answer
   x = 862,707,489.45