Finding the Third Proportional to 139,816,012 and 217,085,294

Step by Step Solution

1. Step 1: Write the proportion equation
   139,816,012 : 217,085,294 = 217,085,294 : x
2. Step 2: Convert to fraction form
   139,816,012/217,085,294 = 217,085,294/x
3. Step 3: Cross multiply
   139,816,012x = 217,085,294 × 217,085,294
4. Step 4: Simplify right side
   139,816,012x = 47,126,024,871,066,432
5. Step 5: Solve for x
   x = 47,126,024,871,066,432/139,816,012
6. Step 6: Final answer
   x = 337,057,424.23