Finding the Third Proportional to 2,728.97 and 5,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.97 : 5,572.50 = 5,572.50 : x
2. Step 2: Convert to fraction form
   2,728.97/5,572.50 = 5,572.50/x
3. Step 3: Cross multiply
   2,728.97x = 5,572.50 × 5,572.50
4. Step 4: Simplify right side
   2,728.97x = 31,052,756.25
5. Step 5: Solve for x
   x = 31,052,756.25/2,728.97
6. Step 6: Final answer
   x = 11,378.93