Finding the Third Proportional to 332 and 488.31

Step by Step Solution

1. Step 1: Write the proportion equation
   332 : 488.31 = 488.31 : x
2. Step 2: Convert to fraction form
   332/488.31 = 488.31/x
3. Step 3: Cross multiply
   332x = 488.31 × 488.31
4. Step 4: Simplify right side
   332x = 238,449.10
5. Step 5: Solve for x
   x = 238,449.10/332
6. Step 6: Final answer
   x = 718.22