Finding the Third Proportional to 150.89 and 318.00

Step by Step Solution

1. Step 1: Write the proportion equation
   150.89 : 318.00 = 318.00 : x
2. Step 2: Convert to fraction form
   150.89/318.00 = 318.00/x
3. Step 3: Cross multiply
   150.89x = 318.00 × 318.00
4. Step 4: Simplify right side
   150.89x = 101,122.14
5. Step 5: Solve for x
   x = 101,122.14/150.89
6. Step 6: Final answer
   x = 670.17