Finding the Third Proportional to 1,351.69 and 3,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.69 : 3,426.05 = 3,426.05 : x
2. Step 2: Convert to fraction form
   1,351.69/3,426.05 = 3,426.05/x
3. Step 3: Cross multiply
   1,351.69x = 3,426.05 × 3,426.05
4. Step 4: Simplify right side
   1,351.69x = 11,737,797.19
5. Step 5: Solve for x
   x = 11,737,797.19/1,351.69
6. Step 6: Final answer
   x = 8,683.81