Finding the Third Proportional to 2,643 and 3,560.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643 : 3,560.25 = 3,560.25 : x
2. Step 2: Convert to fraction form
   2,643/3,560.25 = 3,560.25/x
3. Step 3: Cross multiply
   2,643x = 3,560.25 × 3,560.25
4. Step 4: Simplify right side
   2,643x = 12,675,380.06
5. Step 5: Solve for x
   x = 12,675,380.06/2,643
6. Step 6: Final answer
   x = 4,795.83