Finding the Third Proportional to 8,309,738 and 12,764,771

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309,738 : 12,764,771 = 12,764,771 : x
2. Step 2: Convert to fraction form
   8,309,738/12,764,771 = 12,764,771/x
3. Step 3: Cross multiply
   8,309,738x = 12,764,771 × 12,764,771
4. Step 4: Simplify right side
   8,309,738x = 162,939,378,682,441
5. Step 5: Solve for x
   x = 162,939,378,682,441/8,309,738
6. Step 6: Final answer
   x = 19,608,245.01