Finding the Third Proportional to 1,443.38 and 2,124.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.38 : 2,124.28 = 2,124.28 : x
2. Step 2: Convert to fraction form
   1,443.38/2,124.28 = 2,124.28/x
3. Step 3: Cross multiply
   1,443.38x = 2,124.28 × 2,124.28
4. Step 4: Simplify right side
   1,443.38x = 4,512,570.83
5. Step 5: Solve for x
   x = 4,512,570.83/1,443.38
6. Step 6: Final answer
   x = 3,126.40