Finding the Third Proportional to 151.02 and 321.82

Step by Step Solution

1. Step 1: Write the proportion equation
   151.02 : 321.82 = 321.82 : x
2. Step 2: Convert to fraction form
   151.02/321.82 = 321.82/x
3. Step 3: Cross multiply
   151.02x = 321.82 × 321.82
4. Step 4: Simplify right side
   151.02x = 103,568.31
5. Step 5: Solve for x
   x = 103,568.31/151.02
6. Step 6: Final answer
   x = 685.79