Finding the Third Proportional to 3,981.50 and 7,862

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.50 : 7,862 = 7,862 : x
2. Step 2: Convert to fraction form
   3,981.50/7,862 = 7,862/x
3. Step 3: Cross multiply
   3,981.50x = 7,862 × 7,862
4. Step 4: Simplify right side
   3,981.50x = 61,811,044
5. Step 5: Solve for x
   x = 61,811,044/3,981.50
6. Step 6: Final answer
   x = 15,524.56