Finding the Third Proportional to 2,166.19 and 3,403.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.19 : 3,403.69 = 3,403.69 : x
2. Step 2: Convert to fraction form
   2,166.19/3,403.69 = 3,403.69/x
3. Step 3: Cross multiply
   2,166.19x = 3,403.69 × 3,403.69
4. Step 4: Simplify right side
   2,166.19x = 11,585,088.60
5. Step 5: Solve for x
   x = 11,585,088.60/2,166.19
6. Step 6: Final answer
   x = 5,348.15