Finding the Third Proportional to 39.63 and 59.31

Step by Step Solution

1. Step 1: Write the proportion equation
   39.63 : 59.31 = 59.31 : x
2. Step 2: Convert to fraction form
   39.63/59.31 = 59.31/x
3. Step 3: Cross multiply
   39.63x = 59.31 × 59.31
4. Step 4: Simplify right side
   39.63x = 3,517.97
5. Step 5: Solve for x
   x = 3,517.97/39.63
6. Step 6: Final answer
   x = 88.78