Finding the Third Proportional to 90,108,376 and 139,589,700

Step by Step Solution

1. Step 1: Write the proportion equation
   90,108,376 : 139,589,700 = 139,589,700 : x
2. Step 2: Convert to fraction form
   90,108,376/139,589,700 = 139,589,700/x
3. Step 3: Cross multiply
   90,108,376x = 139,589,700 × 139,589,700
4. Step 4: Simplify right side
   90,108,376x = 19,485,284,346,090,000
5. Step 5: Solve for x
   x = 19,485,284,346,090,000/90,108,376
6. Step 6: Final answer
   x = 216,242,764.67