Finding the Third Proportional to 152.30 and 330.52

Step by Step Solution

1. Step 1: Write the proportion equation
   152.30 : 330.52 = 330.52 : x
2. Step 2: Convert to fraction form
   152.30/330.52 = 330.52/x
3. Step 3: Cross multiply
   152.30x = 330.52 × 330.52
4. Step 4: Simplify right side
   152.30x = 109,240.58
5. Step 5: Solve for x
   x = 109,240.58/152.30
6. Step 6: Final answer
   x = 717.29