Finding the Third Proportional to 1,281.38 and 2,671.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.38 : 2,671.88 = 2,671.88 : x
2. Step 2: Convert to fraction form
   1,281.38/2,671.88 = 2,671.88/x
3. Step 3: Cross multiply
   1,281.38x = 2,671.88 × 2,671.88
4. Step 4: Simplify right side
   1,281.38x = 7,138,916.02
5. Step 5: Solve for x
   x = 7,138,916.02/1,281.38
6. Step 6: Final answer
   x = 5,571.29