Finding the Third Proportional to 8,464.50 and 12,924.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,464.50 : 12,924.56 = 12,924.56 : x
2. Step 2: Convert to fraction form
   8,464.50/12,924.56 = 12,924.56/x
3. Step 3: Cross multiply
   8,464.50x = 12,924.56 × 12,924.56
4. Step 4: Simplify right side
   8,464.50x = 167,044,315.82
5. Step 5: Solve for x
   x = 167,044,315.82/8,464.50
6. Step 6: Final answer
   x = 19,734.69