Finding the Third Proportional to 2,920.50 and 3,894

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.50 : 3,894 = 3,894 : x
2. Step 2: Convert to fraction form
   2,920.50/3,894 = 3,894/x
3. Step 3: Cross multiply
   2,920.50x = 3,894 × 3,894
4. Step 4: Simplify right side
   2,920.50x = 15,163,236
5. Step 5: Solve for x
   x = 15,163,236/2,920.50
6. Step 6: Final answer
   x = 5,192