Finding the Third Proportional to 150.05 and 328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   150.05 : 328.15 = 328.15 : x
2. Step 2: Convert to fraction form
   150.05/328.15 = 328.15/x
3. Step 3: Cross multiply
   150.05x = 328.15 × 328.15
4. Step 4: Simplify right side
   150.05x = 107,681.40
5. Step 5: Solve for x
   x = 107,681.40/150.05
6. Step 6: Final answer
   x = 717.65