Finding the Third Proportional to 673 and 1,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   673 : 1,008.50 = 1,008.50 : x
2. Step 2: Convert to fraction form
   673/1,008.50 = 1,008.50/x
3. Step 3: Cross multiply
   673x = 1,008.50 × 1,008.50
4. Step 4: Simplify right side
   673x = 1,017,072.25
5. Step 5: Solve for x
   x = 1,017,072.25/673
6. Step 6: Final answer
   x = 1,511.25