Finding the Third Proportional to 3,621,936 and 7,540,872

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621,936 : 7,540,872 = 7,540,872 : x
2. Step 2: Convert to fraction form
   3,621,936/7,540,872 = 7,540,872/x
3. Step 3: Cross multiply
   3,621,936x = 7,540,872 × 7,540,872
4. Step 4: Simplify right side
   3,621,936x = 56,864,750,520,384
5. Step 5: Solve for x
   x = 56,864,750,520,384/3,621,936
6. Step 6: Final answer
   x = 15,700,098.10