Finding the Third Proportional to 90,959,112 and 139,951,836

Step by Step Solution

1. Step 1: Write the proportion equation
   90,959,112 : 139,951,836 = 139,951,836 : x
2. Step 2: Convert to fraction form
   90,959,112/139,951,836 = 139,951,836/x
3. Step 3: Cross multiply
   90,959,112x = 139,951,836 × 139,951,836
4. Step 4: Simplify right side
   90,959,112x = 19,586,516,399,770,896
5. Step 5: Solve for x
   x = 19,586,516,399,770,896/90,959,112
6. Step 6: Final answer
   x = 215,333,197.18