Finding the Third Proportional to 90,959,129 and 139,951,862

Step by Step Solution

1. Step 1: Write the proportion equation
   90,959,129 : 139,951,862 = 139,951,862 : x
2. Step 2: Convert to fraction form
   90,959,129/139,951,862 = 139,951,862/x
3. Step 3: Cross multiply
   90,959,129x = 139,951,862 × 139,951,862
4. Step 4: Simplify right side
   90,959,129x = 19,586,523,677,267,044
5. Step 5: Solve for x
   x = 19,586,523,677,267,044/90,959,129
6. Step 6: Final answer
   x = 215,333,236.94