Finding the Third Proportional to 42.91 and 62.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42.91 : 62.89 = 62.89 : x
2. Step 2: Convert to fraction form
   42.91/62.89 = 62.89/x
3. Step 3: Cross multiply
   42.91x = 62.89 × 62.89
4. Step 4: Simplify right side
   42.91x = 3,955.72
5. Step 5: Solve for x
   x = 3,955.72/42.91
6. Step 6: Final answer
   x = 92.18