Finding the Third Proportional to 479.25 and 1,048.78

Step by Step Solution

1. Step 1: Write the proportion equation
   479.25 : 1,048.78 = 1,048.78 : x
2. Step 2: Convert to fraction form
   479.25/1,048.78 = 1,048.78/x
3. Step 3: Cross multiply
   479.25x = 1,048.78 × 1,048.78
4. Step 4: Simplify right side
   479.25x = 1,099,942.11
5. Step 5: Solve for x
   x = 1,099,942.11/479.25
6. Step 6: Final answer
   x = 2,295.13