Finding the Third Proportional to 264.38 and 574.31

Step by Step Solution

1. Step 1: Write the proportion equation
   264.38 : 574.31 = 574.31 : x
2. Step 2: Convert to fraction form
   264.38/574.31 = 574.31/x
3. Step 3: Cross multiply
   264.38x = 574.31 × 574.31
4. Step 4: Simplify right side
   264.38x = 329,834.85
5. Step 5: Solve for x
   x = 329,834.85/264.38
6. Step 6: Final answer
   x = 1,247.60