Finding the Third Proportional to 140,931,432 and 215,609,316

Step by Step Solution

1. Step 1: Write the proportion equation
   140,931,432 : 215,609,316 = 215,609,316 : x
2. Step 2: Convert to fraction form
   140,931,432/215,609,316 = 215,609,316/x
3. Step 3: Cross multiply
   140,931,432x = 215,609,316 × 215,609,316
4. Step 4: Simplify right side
   140,931,432x = 46,487,377,145,987,856
5. Step 5: Solve for x
   x = 46,487,377,145,987,856/140,931,432
6. Step 6: Final answer
   x = 329,858,119.56