Finding the Third Proportional to 2,488.85 and 5,871.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.85 : 5,871.87 = 5,871.87 : x
2. Step 2: Convert to fraction form
   2,488.85/5,871.87 = 5,871.87/x
3. Step 3: Cross multiply
   2,488.85x = 5,871.87 × 5,871.87
4. Step 4: Simplify right side
   2,488.85x = 34,478,824.27
5. Step 5: Solve for x
   x = 34,478,824.27/2,488.85
6. Step 6: Final answer
   x = 13,853.31