Finding the Third Proportional to 8,000,309 and 12,709,052

Step by Step Solution

1. Step 1: Write the proportion equation
   8,000,309 : 12,709,052 = 12,709,052 : x
2. Step 2: Convert to fraction form
   8,000,309/12,709,052 = 12,709,052/x
3. Step 3: Cross multiply
   8,000,309x = 12,709,052 × 12,709,052
4. Step 4: Simplify right side
   8,000,309x = 161,520,002,738,704
5. Step 5: Solve for x
   x = 161,520,002,738,704/8,000,309
6. Step 6: Final answer
   x = 20,189,220.53