Finding the Third Proportional to 1,408.50 and 3,105

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.50 : 3,105 = 3,105 : x
2. Step 2: Convert to fraction form
   1,408.50/3,105 = 3,105/x
3. Step 3: Cross multiply
   1,408.50x = 3,105 × 3,105
4. Step 4: Simplify right side
   1,408.50x = 9,641,025
5. Step 5: Solve for x
   x = 9,641,025/1,408.50
6. Step 6: Final answer
   x = 6,844.89