Finding the Third Proportional to 153.25 and 329.25

Step by Step Solution

1. Step 1: Write the proportion equation
   153.25 : 329.25 = 329.25 : x
2. Step 2: Convert to fraction form
   153.25/329.25 = 329.25/x
3. Step 3: Cross multiply
   153.25x = 329.25 × 329.25
4. Step 4: Simplify right side
   153.25x = 108,405.56
5. Step 5: Solve for x
   x = 108,405.56/153.25
6. Step 6: Final answer
   x = 707.38