Finding the Third Proportional to 1,279.55 and 3,443.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.55 : 3,443.13 = 3,443.13 : x
2. Step 2: Convert to fraction form
   1,279.55/3,443.13 = 3,443.13/x
3. Step 3: Cross multiply
   1,279.55x = 3,443.13 × 3,443.13
4. Step 4: Simplify right side
   1,279.55x = 11,855,163.56
5. Step 5: Solve for x
   x = 11,855,163.56/1,279.55
6. Step 6: Final answer
   x = 9,265.13