Finding the Third Proportional to 2,819 and 4,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819 : 4,388.50 = 4,388.50 : x
2. Step 2: Convert to fraction form
   2,819/4,388.50 = 4,388.50/x
3. Step 3: Cross multiply
   2,819x = 4,388.50 × 4,388.50
4. Step 4: Simplify right side
   2,819x = 19,258,932.25
5. Step 5: Solve for x
   x = 19,258,932.25/2,819
6. Step 6: Final answer
   x = 6,831.83