Finding the Third Proportional to 329.25 and 479.25

Step by Step Solution

1. Step 1: Write the proportion equation
   329.25 : 479.25 = 479.25 : x
2. Step 2: Convert to fraction form
   329.25/479.25 = 479.25/x
3. Step 3: Cross multiply
   329.25x = 479.25 × 479.25
4. Step 4: Simplify right side
   329.25x = 229,680.56
5. Step 5: Solve for x
   x = 229,680.56/329.25
6. Step 6: Final answer
   x = 697.59