Finding the Third Proportional to 29.13 and 42.88

Step by Step Solution

1. Step 1: Write the proportion equation
   29.13 : 42.88 = 42.88 : x
2. Step 2: Convert to fraction form
   29.13/42.88 = 42.88/x
3. Step 3: Cross multiply
   29.13x = 42.88 × 42.88
4. Step 4: Simplify right side
   29.13x = 1,838.27
5. Step 5: Solve for x
   x = 1,838.27/29.13
6. Step 6: Final answer
   x = 63.12