Finding the Third Proportional to 90,109,332 and 139,591,134

Step by Step Solution

1. Step 1: Write the proportion equation
   90,109,332 : 139,591,134 = 139,591,134 : x
2. Step 2: Convert to fraction form
   90,109,332/139,591,134 = 139,591,134/x
3. Step 3: Cross multiply
   90,109,332x = 139,591,134 × 139,591,134
4. Step 4: Simplify right side
   90,109,332x = 19,485,684,691,405,956
5. Step 5: Solve for x
   x = 19,485,684,691,405,956/90,109,332
6. Step 6: Final answer
   x = 216,244,913.36