Finding the Third Proportional to 71,940,661.50 and 111,348,774

Step by Step Solution

1. Step 1: Write the proportion equation
   71,940,661.50 : 111,348,774 = 111,348,774 : x
2. Step 2: Convert to fraction form
   71,940,661.50/111,348,774 = 111,348,774/x
3. Step 3: Cross multiply
   71,940,661.50x = 111,348,774 × 111,348,774
4. Step 4: Simplify right side
   71,940,661.50x = 12,398,549,471,303,076
5. Step 5: Solve for x
   x = 12,398,549,471,303,076/71,940,661.50
6. Step 6: Final answer
   x = 172,344,112.67