Finding the Third Proportional to 132.31 and 281.69

Step by Step Solution

1. Step 1: Write the proportion equation
   132.31 : 281.69 = 281.69 : x
2. Step 2: Convert to fraction form
   132.31/281.69 = 281.69/x
3. Step 3: Cross multiply
   132.31x = 281.69 × 281.69
4. Step 4: Simplify right side
   132.31x = 79,347.85
5. Step 5: Solve for x
   x = 79,347.85/132.31
6. Step 6: Final answer
   x = 599.70