Finding the Third Proportional to 8,162,856 and 12,740,544

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162,856 : 12,740,544 = 12,740,544 : x
2. Step 2: Convert to fraction form
   8,162,856/12,740,544 = 12,740,544/x
3. Step 3: Cross multiply
   8,162,856x = 12,740,544 × 12,740,544
4. Step 4: Simplify right side
   8,162,856x = 162,321,461,415,936
5. Step 5: Solve for x
   x = 162,321,461,415,936/8,162,856
6. Step 6: Final answer
   x = 19,885,376.08