Finding the Third Proportional to 8,397,716 and 12,594,384

Step by Step Solution

1. Step 1: Write the proportion equation
   8,397,716 : 12,594,384 = 12,594,384 : x
2. Step 2: Convert to fraction form
   8,397,716/12,594,384 = 12,594,384/x
3. Step 3: Cross multiply
   8,397,716x = 12,594,384 × 12,594,384
4. Step 4: Simplify right side
   8,397,716x = 158,618,508,339,456
5. Step 5: Solve for x
   x = 158,618,508,339,456/8,397,716
6. Step 6: Final answer
   x = 18,888,291.57