Finding the Third Proportional to 42.75 and 62.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42.75 : 62.63 = 62.63 : x
2. Step 2: Convert to fraction form
   42.75/62.63 = 62.63/x
3. Step 3: Cross multiply
   42.75x = 62.63 × 62.63
4. Step 4: Simplify right side
   42.75x = 3,921.89
5. Step 5: Solve for x
   x = 3,921.89/42.75
6. Step 6: Final answer
   x = 91.74