Finding the Third Proportional to 132,789 and 311,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,789 : 311,074.50 = 311,074.50 : x
2. Step 2: Convert to fraction form
   132,789/311,074.50 = 311,074.50/x
3. Step 3: Cross multiply
   132,789x = 311,074.50 × 311,074.50
4. Step 4: Simplify right side
   132,789x = 96,767,344,550.25
5. Step 5: Solve for x
   x = 96,767,344,550.25/132,789
6. Step 6: Final answer
   x = 728,730.12