Finding the Third Proportional to 2,575.50 and 5,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.50 : 5,550.50 = 5,550.50 : x
2. Step 2: Convert to fraction form
   2,575.50/5,550.50 = 5,550.50/x
3. Step 3: Cross multiply
   2,575.50x = 5,550.50 × 5,550.50
4. Step 4: Simplify right side
   2,575.50x = 30,808,050.25
5. Step 5: Solve for x
   x = 30,808,050.25/2,575.50
6. Step 6: Final answer
   x = 11,961.97