Finding the Third Proportional to 861.50 and 1,244

Step by Step Solution

1. Step 1: Write the proportion equation
   861.50 : 1,244 = 1,244 : x
2. Step 2: Convert to fraction form
   861.50/1,244 = 1,244/x
3. Step 3: Cross multiply
   861.50x = 1,244 × 1,244
4. Step 4: Simplify right side
   861.50x = 1,547,536
5. Step 5: Solve for x
   x = 1,547,536/861.50
6. Step 6: Final answer
   x = 1,796.33