Finding the Third Proportional to 8,426.25 and 12,894.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.25 : 12,894.75 = 12,894.75 : x
2. Step 2: Convert to fraction form
   8,426.25/12,894.75 = 12,894.75/x
3. Step 3: Cross multiply
   8,426.25x = 12,894.75 × 12,894.75
4. Step 4: Simplify right side
   8,426.25x = 166,274,577.56
5. Step 5: Solve for x
   x = 166,274,577.56/8,426.25
6. Step 6: Final answer
   x = 19,732.93