Finding the Third Proportional to 374.25 and 574.31

Step by Step Solution

1. Step 1: Write the proportion equation
   374.25 : 574.31 = 574.31 : x
2. Step 2: Convert to fraction form
   374.25/574.31 = 574.31/x
3. Step 3: Cross multiply
   374.25x = 574.31 × 574.31
4. Step 4: Simplify right side
   374.25x = 329,834.85
5. Step 5: Solve for x
   x = 329,834.85/374.25
6. Step 6: Final answer
   x = 881.32