Finding the Third Proportional to 5,179,736 and 8,107,536

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179,736 : 8,107,536 = 8,107,536 : x
2. Step 2: Convert to fraction form
   5,179,736/8,107,536 = 8,107,536/x
3. Step 3: Cross multiply
   5,179,736x = 8,107,536 × 8,107,536
4. Step 4: Simplify right side
   5,179,736x = 65,732,139,991,296
5. Step 5: Solve for x
   x = 65,732,139,991,296/5,179,736
6. Step 6: Final answer
   x = 12,690,249.08