Finding the Third Proportional to 151,939,834 and 309,249,320

Step by Step Solution

1. Step 1: Write the proportion equation
   151,939,834 : 309,249,320 = 309,249,320 : x
2. Step 2: Convert to fraction form
   151,939,834/309,249,320 = 309,249,320/x
3. Step 3: Cross multiply
   151,939,834x = 309,249,320 × 309,249,320
4. Step 4: Simplify right side
   151,939,834x = 95,635,141,920,462,400
5. Step 5: Solve for x
   x = 95,635,141,920,462,400/151,939,834
6. Step 6: Final answer
   x = 629,427,710.97