Finding the Third Proportional to 2,609.72 and 4,039.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.72 : 4,039.17 = 4,039.17 : x
2. Step 2: Convert to fraction form
   2,609.72/4,039.17 = 4,039.17/x
3. Step 3: Cross multiply
   2,609.72x = 4,039.17 × 4,039.17
4. Step 4: Simplify right side
   2,609.72x = 16,314,909.44
5. Step 5: Solve for x
   x = 16,314,909.44/2,609.72
6. Step 6: Final answer
   x = 6,251.60