Finding the Third Proportional to 59,939.75 and 131,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,939.75 : 131,543.50 = 131,543.50 : x
2. Step 2: Convert to fraction form
   59,939.75/131,543.50 = 131,543.50/x
3. Step 3: Cross multiply
   59,939.75x = 131,543.50 × 131,543.50
4. Step 4: Simplify right side
   59,939.75x = 17,303,692,392.25
5. Step 5: Solve for x
   x = 17,303,692,392.25/59,939.75
6. Step 6: Final answer
   x = 288,684.76