Finding the Third Proportional to 1,981.97 and 3,143.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.97 : 3,143.81 = 3,143.81 : x
2. Step 2: Convert to fraction form
   1,981.97/3,143.81 = 3,143.81/x
3. Step 3: Cross multiply
   1,981.97x = 3,143.81 × 3,143.81
4. Step 4: Simplify right side
   1,981.97x = 9,883,557.04
5. Step 5: Solve for x
   x = 9,883,557.04/1,981.97
6. Step 6: Final answer
   x = 4,986.74