Finding the Third Proportional to 7,863.75 and 12,069.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,863.75 : 12,069.38 = 12,069.38 : x
2. Step 2: Convert to fraction form
   7,863.75/12,069.38 = 12,069.38/x
3. Step 3: Cross multiply
   7,863.75x = 12,069.38 × 12,069.38
4. Step 4: Simplify right side
   7,863.75x = 145,669,812.89
5. Step 5: Solve for x
   x = 145,669,812.89/7,863.75
6. Step 6: Final answer
   x = 18,524.22