Finding the Third Proportional to 2,515.50 and 5,377.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.50 : 5,377.36 = 5,377.36 : x
2. Step 2: Convert to fraction form
   2,515.50/5,377.36 = 5,377.36/x
3. Step 3: Cross multiply
   2,515.50x = 5,377.36 × 5,377.36
4. Step 4: Simplify right side
   2,515.50x = 28,915,993.85
5. Step 5: Solve for x
   x = 28,915,993.85/2,515.50
6. Step 6: Final answer
   x = 11,495.13