Finding the Third Proportional to 302.75 and 479.69

Step by Step Solution

1. Step 1: Write the proportion equation
   302.75 : 479.69 = 479.69 : x
2. Step 2: Convert to fraction form
   302.75/479.69 = 479.69/x
3. Step 3: Cross multiply
   302.75x = 479.69 × 479.69
4. Step 4: Simplify right side
   302.75x = 230,100.10
5. Step 5: Solve for x
   x = 230,100.10/302.75
6. Step 6: Final answer
   x = 760.03