Finding the Third Proportional to 71,620.59 and 151,778.77

Step by Step Solution

1. Step 1: Write the proportion equation
   71,620.59 : 151,778.77 = 151,778.77 : x
2. Step 2: Convert to fraction form
   71,620.59/151,778.77 = 151,778.77/x
3. Step 3: Cross multiply
   71,620.59x = 151,778.77 × 151,778.77
4. Step 4: Simplify right side
   71,620.59x = 23,036,793,694.65
5. Step 5: Solve for x
   x = 23,036,793,694.65/71,620.59
6. Step 6: Final answer
   x = 321,650.41