Finding the Third Proportional to 42.50 and 88

Step by Step Solution

1. Step 1: Write the proportion equation
   42.50 : 88 = 88 : x
2. Step 2: Convert to fraction form
   42.50/88 = 88/x
3. Step 3: Cross multiply
   42.50x = 88 × 88
4. Step 4: Simplify right side
   42.50x = 7,744
5. Step 5: Solve for x
   x = 7,744/42.50
6. Step 6: Final answer
   x = 182.21