Finding the Third Proportional to 1,282.13 and 2,002.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.13 : 2,002.88 = 2,002.88 : x
2. Step 2: Convert to fraction form
   1,282.13/2,002.88 = 2,002.88/x
3. Step 3: Cross multiply
   1,282.13x = 2,002.88 × 2,002.88
4. Step 4: Simplify right side
   1,282.13x = 4,011,508.27
5. Step 5: Solve for x
   x = 4,011,508.27/1,282.13
6. Step 6: Final answer
   x = 3,128.80