Finding the Third Proportional to 23.55 and 40.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23.55 : 40.92 = 40.92 : x
2. Step 2: Convert to fraction form
   23.55/40.92 = 40.92/x
3. Step 3: Cross multiply
   23.55x = 40.92 × 40.92
4. Step 4: Simplify right side
   23.55x = 1,674.60
5. Step 5: Solve for x
   x = 1,674.60/23.55
6. Step 6: Final answer
   x = 71.09