Finding the Third Proportional to 1,313.72 and 2,874.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,313.72 : 2,874.23 = 2,874.23 : x
2. Step 2: Convert to fraction form
   1,313.72/2,874.23 = 2,874.23/x
3. Step 3: Cross multiply
   1,313.72x = 2,874.23 × 2,874.23
4. Step 4: Simplify right side
   1,313.72x = 8,261,223.24
5. Step 5: Solve for x
   x = 8,261,223.24/1,313.72
6. Step 6: Final answer
   x = 6,288.43