Finding the Third Proportional to 425.04 and 624.27

Step by Step Solution

1. Step 1: Write the proportion equation
   425.04 : 624.27 = 624.27 : x
2. Step 2: Convert to fraction form
   425.04/624.27 = 624.27/x
3. Step 3: Cross multiply
   425.04x = 624.27 × 624.27
4. Step 4: Simplify right side
   425.04x = 389,712.45
5. Step 5: Solve for x
   x = 389,712.45/425.04
6. Step 6: Final answer
   x = 916.89