Finding the Third Proportional to 151.31 and 331.52

Step by Step Solution

1. Step 1: Write the proportion equation
   151.31 : 331.52 = 331.52 : x
2. Step 2: Convert to fraction form
   151.31/331.52 = 331.52/x
3. Step 3: Cross multiply
   151.31x = 331.52 × 331.52
4. Step 4: Simplify right side
   151.31x = 109,907.79
5. Step 5: Solve for x
   x = 109,907.79/151.31
6. Step 6: Final answer
   x = 726.36