Finding the Third Proportional to 3,811,662 and 8,379,053

Step by Step Solution

1. Step 1: Write the proportion equation
   3,811,662 : 8,379,053 = 8,379,053 : x
2. Step 2: Convert to fraction form
   3,811,662/8,379,053 = 8,379,053/x
3. Step 3: Cross multiply
   3,811,662x = 8,379,053 × 8,379,053
4. Step 4: Simplify right side
   3,811,662x = 70,208,529,176,809
5. Step 5: Solve for x
   x = 70,208,529,176,809/3,811,662
6. Step 6: Final answer
   x = 18,419,400.56