Finding the Third Proportional to 2,615.87 and 5,722.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.87 : 5,722.96 = 5,722.96 : x
2. Step 2: Convert to fraction form
   2,615.87/5,722.96 = 5,722.96/x
3. Step 3: Cross multiply
   2,615.87x = 5,722.96 × 5,722.96
4. Step 4: Simplify right side
   2,615.87x = 32,752,253.95
5. Step 5: Solve for x
   x = 32,752,253.95/2,615.87
6. Step 6: Final answer
   x = 12,520.60