Finding the Third Proportional to 425.72 and 572.06

Step by Step Solution

1. Step 1: Write the proportion equation
   425.72 : 572.06 = 572.06 : x
2. Step 2: Convert to fraction form
   425.72/572.06 = 572.06/x
3. Step 3: Cross multiply
   425.72x = 572.06 × 572.06
4. Step 4: Simplify right side
   425.72x = 327,255.50
5. Step 5: Solve for x
   x = 327,255.50/425.72
6. Step 6: Final answer
   x = 768.70