Finding the Third Proportional to 332.44 and 488.72

Step by Step Solution

1. Step 1: Write the proportion equation
   332.44 : 488.72 = 488.72 : x
2. Step 2: Convert to fraction form
   332.44/488.72 = 488.72/x
3. Step 3: Cross multiply
   332.44x = 488.72 × 488.72
4. Step 4: Simplify right side
   332.44x = 238,846.02
5. Step 5: Solve for x
   x = 238,846.02/332.44
6. Step 6: Final answer
   x = 718.47