Finding the Third Proportional to 40.29 and 82.48

Step by Step Solution

1. Step 1: Write the proportion equation
   40.29 : 82.48 = 82.48 : x
2. Step 2: Convert to fraction form
   40.29/82.48 = 82.48/x
3. Step 3: Cross multiply
   40.29x = 82.48 × 82.48
4. Step 4: Simplify right side
   40.29x = 6,802.38
5. Step 5: Solve for x
   x = 6,802.38/40.29
6. Step 6: Final answer
   x = 168.84