Finding the Third Proportional to 2,218.22 and 3,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.22 : 3,426.05 = 3,426.05 : x
2. Step 2: Convert to fraction form
   2,218.22/3,426.05 = 3,426.05/x
3. Step 3: Cross multiply
   2,218.22x = 3,426.05 × 3,426.05
4. Step 4: Simplify right side
   2,218.22x = 11,737,797.19
5. Step 5: Solve for x
   x = 11,737,797.19/2,218.22
6. Step 6: Final answer
   x = 5,291.54