Finding the Third Proportional to 40.55 and 58.12

Step by Step Solution

1. Step 1: Write the proportion equation
   40.55 : 58.12 = 58.12 : x
2. Step 2: Convert to fraction form
   40.55/58.12 = 58.12/x
3. Step 3: Cross multiply
   40.55x = 58.12 × 58.12
4. Step 4: Simplify right side
   40.55x = 3,377.42
5. Step 5: Solve for x
   x = 3,377.42/40.55
6. Step 6: Final answer
   x = 83.30