Finding the Third Proportional to 78,729,768 and 110,820,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,729,768 : 110,820,550.50 = 110,820,550.50 : x
2. Step 2: Convert to fraction form
   78,729,768/110,820,550.50 = 110,820,550.50/x
3. Step 3: Cross multiply
   78,729,768x = 110,820,550.50 × 110,820,550.50
4. Step 4: Simplify right side
   78,729,768x = 12,281,194,413,123,050
5. Step 5: Solve for x
   x = 12,281,194,413,123,050/78,729,768
6. Step 6: Final answer
   x = 155,991,751.60