Finding the Third Proportional to 90,749,256 and 139,487,496

Step by Step Solution

1. Step 1: Write the proportion equation
   90,749,256 : 139,487,496 = 139,487,496 : x
2. Step 2: Convert to fraction form
   90,749,256/139,487,496 = 139,487,496/x
3. Step 3: Cross multiply
   90,749,256x = 139,487,496 × 139,487,496
4. Step 4: Simplify right side
   90,749,256x = 19,456,761,540,350,016
5. Step 5: Solve for x
   x = 19,456,761,540,350,016/90,749,256
6. Step 6: Final answer
   x = 214,401,333.94