Finding the Third Proportional to 93,128.25 and 142,693.88

Step by Step Solution

1. Step 1: Write the proportion equation
   93,128.25 : 142,693.88 = 142,693.88 : x
2. Step 2: Convert to fraction form
   93,128.25/142,693.88 = 142,693.88/x
3. Step 3: Cross multiply
   93,128.25x = 142,693.88 × 142,693.88
4. Step 4: Simplify right side
   93,128.25x = 20,361,541,962.52
5. Step 5: Solve for x
   x = 20,361,541,962.52/93,128.25
6. Step 6: Final answer
   x = 218,639.80