Finding the Third Proportional to 8,496,866 and 12,815,814

Step by Step Solution

1. Step 1: Write the proportion equation
   8,496,866 : 12,815,814 = 12,815,814 : x
2. Step 2: Convert to fraction form
   8,496,866/12,815,814 = 12,815,814/x
3. Step 3: Cross multiply
   8,496,866x = 12,815,814 × 12,815,814
4. Step 4: Simplify right side
   8,496,866x = 164,245,088,482,596
5. Step 5: Solve for x
   x = 164,245,088,482,596/8,496,866
6. Step 6: Final answer
   x = 19,330,078.70