Finding the Third Proportional to 88,290 and 124,153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,290 : 124,153.50 = 124,153.50 : x
2. Step 2: Convert to fraction form
   88,290/124,153.50 = 124,153.50/x
3. Step 3: Cross multiply
   88,290x = 124,153.50 × 124,153.50
4. Step 4: Simplify right side
   88,290x = 15,414,091,562.25
5. Step 5: Solve for x
   x = 15,414,091,562.25/88,290
6. Step 6: Final answer
   x = 174,584.80