Finding the Third Proportional to 57,543 and 123,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,543 : 123,081.50 = 123,081.50 : x
2. Step 2: Convert to fraction form
   57,543/123,081.50 = 123,081.50/x
3. Step 3: Cross multiply
   57,543x = 123,081.50 × 123,081.50
4. Step 4: Simplify right side
   57,543x = 15,149,055,642.25
5. Step 5: Solve for x
   x = 15,149,055,642.25/57,543
6. Step 6: Final answer
   x = 263,264.96