Finding the Third Proportional to 12,278.25 and 18,883.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,278.25 : 18,883.69 = 18,883.69 : x
2. Step 2: Convert to fraction form
   12,278.25/18,883.69 = 18,883.69/x
3. Step 3: Cross multiply
   12,278.25x = 18,883.69 × 18,883.69
4. Step 4: Simplify right side
   12,278.25x = 356,593,653.60
5. Step 5: Solve for x
   x = 356,593,653.60/12,278.25
6. Step 6: Final answer
   x = 29,042.71