Finding the Third Proportional to 2,188.69 and 4,863.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.69 : 4,863.38 = 4,863.38 : x
2. Step 2: Convert to fraction form
   2,188.69/4,863.38 = 4,863.38/x
3. Step 3: Cross multiply
   2,188.69x = 4,863.38 × 4,863.38
4. Step 4: Simplify right side
   2,188.69x = 23,652,416.39
5. Step 5: Solve for x
   x = 23,652,416.39/2,188.69
6. Step 6: Final answer
   x = 10,806.67