Finding the Third Proportional to 2,869.59 and 4,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.59 : 4,040.72 = 4,040.72 : x
2. Step 2: Convert to fraction form
   2,869.59/4,040.72 = 4,040.72/x
3. Step 3: Cross multiply
   2,869.59x = 4,040.72 × 4,040.72
4. Step 4: Simplify right side
   2,869.59x = 16,327,408.02
5. Step 5: Solve for x
   x = 16,327,408.02/2,869.59
6. Step 6: Final answer
   x = 5,689.80