Finding the Third Proportional to 2,643.05 and 5,809.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.05 : 5,809.22 = 5,809.22 : x
2. Step 2: Convert to fraction form
   2,643.05/5,809.22 = 5,809.22/x
3. Step 3: Cross multiply
   2,643.05x = 5,809.22 × 5,809.22
4. Step 4: Simplify right side
   2,643.05x = 33,747,022.49
5. Step 5: Solve for x
   x = 33,747,022.49/2,643.05
6. Step 6: Final answer
   x = 12,768.23