Finding the Third Proportional to 150.81 and 329.25

Step by Step Solution

1. Step 1: Write the proportion equation
   150.81 : 329.25 = 329.25 : x
2. Step 2: Convert to fraction form
   150.81/329.25 = 329.25/x
3. Step 3: Cross multiply
   150.81x = 329.25 × 329.25
4. Step 4: Simplify right side
   150.81x = 108,405.56
5. Step 5: Solve for x
   x = 108,405.56/150.81
6. Step 6: Final answer
   x = 718.81