Finding the Third Proportional to 3,682,661 and 7,877,039

Step by Step Solution

1. Step 1: Write the proportion equation
   3,682,661 : 7,877,039 = 7,877,039 : x
2. Step 2: Convert to fraction form
   3,682,661/7,877,039 = 7,877,039/x
3. Step 3: Cross multiply
   3,682,661x = 7,877,039 × 7,877,039
4. Step 4: Simplify right side
   3,682,661x = 62,047,743,407,521
5. Step 5: Solve for x
   x = 62,047,743,407,521/3,682,661
6. Step 6: Final answer
   x = 16,848,616.64