Finding the Third Proportional to 796.50 and 1,299

Step by Step Solution

1. Step 1: Write the proportion equation
   796.50 : 1,299 = 1,299 : x
2. Step 2: Convert to fraction form
   796.50/1,299 = 1,299/x
3. Step 3: Cross multiply
   796.50x = 1,299 × 1,299
4. Step 4: Simplify right side
   796.50x = 1,687,401
5. Step 5: Solve for x
   x = 1,687,401/796.50
6. Step 6: Final answer
   x = 2,118.52