Finding the Third Proportional to 141,013,264.80 and 309,267,018.31

Step by Step Solution

1. Step 1: Write the proportion equation
   141,013,264.80 : 309,267,018.31 = 309,267,018.31 : x
2. Step 2: Convert to fraction form
   141,013,264.80/309,267,018.31 = 309,267,018.31/x
3. Step 3: Cross multiply
   141,013,264.80x = 309,267,018.31 × 309,267,018.31
4. Step 4: Simplify right side
   141,013,264.80x = 95,646,088,614,240,336
5. Step 5: Solve for x
   x = 95,646,088,614,240,336/141,013,264.80
6. Step 6: Final answer
   x = 678,277,244.00