Finding the Third Proportional to 681 and 1,060.50

Step by Step Solution

1. Step 1: Write the proportion equation
   681 : 1,060.50 = 1,060.50 : x
2. Step 2: Convert to fraction form
   681/1,060.50 = 1,060.50/x
3. Step 3: Cross multiply
   681x = 1,060.50 × 1,060.50
4. Step 4: Simplify right side
   681x = 1,124,660.25
5. Step 5: Solve for x
   x = 1,124,660.25/681
6. Step 6: Final answer
   x = 1,651.48