Finding the Third Proportional to 57,231 and 88,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,231 : 88,543.50 = 88,543.50 : x
2. Step 2: Convert to fraction form
   57,231/88,543.50 = 88,543.50/x
3. Step 3: Cross multiply
   57,231x = 88,543.50 × 88,543.50
4. Step 4: Simplify right side
   57,231x = 7,839,951,392.25
5. Step 5: Solve for x
   x = 7,839,951,392.25/57,231
6. Step 6: Final answer
   x = 136,987.85