Finding the Third Proportional to 3,309.19 and 4,411.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,309.19 : 4,411.69 = 4,411.69 : x
2. Step 2: Convert to fraction form
   3,309.19/4,411.69 = 4,411.69/x
3. Step 3: Cross multiply
   3,309.19x = 4,411.69 × 4,411.69
4. Step 4: Simplify right side
   3,309.19x = 19,462,986.60
5. Step 5: Solve for x
   x = 19,462,986.60/3,309.19
6. Step 6: Final answer
   x = 5,881.50