Finding the Third Proportional to 1,118.25 and 2,399.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.25 : 2,399.06 = 2,399.06 : x
2. Step 2: Convert to fraction form
   1,118.25/2,399.06 = 2,399.06/x
3. Step 3: Cross multiply
   1,118.25x = 2,399.06 × 2,399.06
4. Step 4: Simplify right side
   1,118.25x = 5,755,500.88
5. Step 5: Solve for x
   x = 5,755,500.88/1,118.25
6. Step 6: Final answer
   x = 5,146.88