Finding the Third Proportional to 981 and 2,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   981 : 2,144.25 = 2,144.25 : x
2. Step 2: Convert to fraction form
   981/2,144.25 = 2,144.25/x
3. Step 3: Cross multiply
   981x = 2,144.25 × 2,144.25
4. Step 4: Simplify right side
   981x = 4,597,808.06
5. Step 5: Solve for x
   x = 4,597,808.06/981
6. Step 6: Final answer
   x = 4,686.86