Finding the Third Proportional to 2,553.40 and 5,338.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.40 : 5,338.41 = 5,338.41 : x
2. Step 2: Convert to fraction form
   2,553.40/5,338.41 = 5,338.41/x
3. Step 3: Cross multiply
   2,553.40x = 5,338.41 × 5,338.41
4. Step 4: Simplify right side
   2,553.40x = 28,498,581.29
5. Step 5: Solve for x
   x = 28,498,581.29/2,553.40
6. Step 6: Final answer
   x = 11,161.04