Finding the Third Proportional to 2,439.97 and 5,290.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.97 : 5,290.00 = 5,290.00 : x
2. Step 2: Convert to fraction form
   2,439.97/5,290.00 = 5,290.00/x
3. Step 3: Cross multiply
   2,439.97x = 5,290.00 × 5,290.00
4. Step 4: Simplify right side
   2,439.97x = 27,984,058.67
5. Step 5: Solve for x
   x = 27,984,058.67/2,439.97
6. Step 6: Final answer
   x = 11,469.03