Finding the Third Proportional to 3,309 and 5,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,309 : 5,758.50 = 5,758.50 : x
2. Step 2: Convert to fraction form
   3,309/5,758.50 = 5,758.50/x
3. Step 3: Cross multiply
   3,309x = 5,758.50 × 5,758.50
4. Step 4: Simplify right side
   3,309x = 33,160,322.25
5. Step 5: Solve for x
   x = 33,160,322.25/3,309
6. Step 6: Final answer
   x = 10,021.25