Finding the Third Proportional to 2,518.75 and 5,540.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.75 : 5,540.88 = 5,540.88 : x
2. Step 2: Convert to fraction form
   2,518.75/5,540.88 = 5,540.88/x
3. Step 3: Cross multiply
   2,518.75x = 5,540.88 × 5,540.88
4. Step 4: Simplify right side
   2,518.75x = 30,701,295.77
5. Step 5: Solve for x
   x = 30,701,295.77/2,518.75
6. Step 6: Final answer
   x = 12,189.10