Finding the Third Proportional to 56,707 and 123,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,707 : 123,790.50 = 123,790.50 : x
2. Step 2: Convert to fraction form
   56,707/123,790.50 = 123,790.50/x
3. Step 3: Cross multiply
   56,707x = 123,790.50 × 123,790.50
4. Step 4: Simplify right side
   56,707x = 15,324,087,890.25
5. Step 5: Solve for x
   x = 15,324,087,890.25/56,707
6. Step 6: Final answer
   x = 270,232.74