Finding the Third Proportional to 1,673 and 3,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673 : 3,518.50 = 3,518.50 : x
2. Step 2: Convert to fraction form
   1,673/3,518.50 = 3,518.50/x
3. Step 3: Cross multiply
   1,673x = 3,518.50 × 3,518.50
4. Step 4: Simplify right side
   1,673x = 12,379,842.25
5. Step 5: Solve for x
   x = 12,379,842.25/1,673
6. Step 6: Final answer
   x = 7,399.79