Finding the Third Proportional to 1,118.18 and 2,406.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.18 : 2,406.27 = 2,406.27 : x
2. Step 2: Convert to fraction form
   1,118.18/2,406.27 = 2,406.27/x
3. Step 3: Cross multiply
   1,118.18x = 2,406.27 × 2,406.27
4. Step 4: Simplify right side
   1,118.18x = 5,790,133.06
5. Step 5: Solve for x
   x = 5,790,133.06/1,118.18
6. Step 6: Final answer
   x = 5,178.18