Finding the Third Proportional to 426.52 and 662.55

Step by Step Solution

1. Step 1: Write the proportion equation
   426.52 : 662.55 = 662.55 : x
2. Step 2: Convert to fraction form
   426.52/662.55 = 662.55/x
3. Step 3: Cross multiply
   426.52x = 662.55 × 662.55
4. Step 4: Simplify right side
   426.52x = 438,978.71
5. Step 5: Solve for x
   x = 438,978.71/426.52
6. Step 6: Final answer
   x = 1,029.22