Finding the Third Proportional to 91,080,434.50 and 140,876,728

Step by Step Solution

1. Step 1: Write the proportion equation
   91,080,434.50 : 140,876,728 = 140,876,728 : x
2. Step 2: Convert to fraction form
   91,080,434.50/140,876,728 = 140,876,728/x
3. Step 3: Cross multiply
   91,080,434.50x = 140,876,728 × 140,876,728
4. Step 4: Simplify right side
   91,080,434.50x = 19,846,252,491,985,984
5. Step 5: Solve for x
   x = 19,846,252,491,985,984/91,080,434.50
6. Step 6: Final answer
   x = 217,898,087.56