Finding the Third Proportional to 1,130.28 and 2,479.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,130.28 : 2,479.42 = 2,479.42 : x
2. Step 2: Convert to fraction form
   1,130.28/2,479.42 = 2,479.42/x
3. Step 3: Cross multiply
   1,130.28x = 2,479.42 × 2,479.42
4. Step 4: Simplify right side
   1,130.28x = 6,147,517.10
5. Step 5: Solve for x
   x = 6,147,517.10/1,130.28
6. Step 6: Final answer
   x = 5,438.92