Finding the Third Proportional to 1,144.13 and 3,100.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.13 : 3,100.15 = 3,100.15 : x
2. Step 2: Convert to fraction form
   1,144.13/3,100.15 = 3,100.15/x
3. Step 3: Cross multiply
   1,144.13x = 3,100.15 × 3,100.15
4. Step 4: Simplify right side
   1,144.13x = 9,610,920.33
5. Step 5: Solve for x
   x = 9,610,920.33/1,144.13
6. Step 6: Final answer
   x = 8,400.24