Finding the Third Proportional to 1,271.06 and 2,643.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.06 : 2,643.56 = 2,643.56 : x
2. Step 2: Convert to fraction form
   1,271.06/2,643.56 = 2,643.56/x
3. Step 3: Cross multiply
   1,271.06x = 2,643.56 × 2,643.56
4. Step 4: Simplify right side
   1,271.06x = 6,988,422.69
5. Step 5: Solve for x
   x = 6,988,422.69/1,271.06
6. Step 6: Final answer
   x = 5,498.10