Finding the Third Proportional to 143,553,390 and 314,896,746

Step by Step Solution

1. Step 1: Write the proportion equation
   143,553,390 : 314,896,746 = 314,896,746 : x
2. Step 2: Convert to fraction form
   143,553,390/314,896,746 = 314,896,746/x
3. Step 3: Cross multiply
   143,553,390x = 314,896,746 × 314,896,746
4. Step 4: Simplify right side
   143,553,390x = 99,159,960,641,388,512
5. Step 5: Solve for x
   x = 99,159,960,641,388,512/143,553,390
6. Step 6: Final answer
   x = 690,753,179.99