Finding the Third Proportional to 2,497.50 and 5,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,497.50 : 5,418.56 = 5,418.56 : x
2. Step 2: Convert to fraction form
   2,497.50/5,418.56 = 5,418.56/x
3. Step 3: Cross multiply
   2,497.50x = 5,418.56 × 5,418.56
4. Step 4: Simplify right side
   2,497.50x = 29,360,819.57
5. Step 5: Solve for x
   x = 29,360,819.57/2,497.50
6. Step 6: Final answer
   x = 11,756.08