Finding the Third Proportional to 3,994,406 and 8,548,684

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994,406 : 8,548,684 = 8,548,684 : x
2. Step 2: Convert to fraction form
   3,994,406/8,548,684 = 8,548,684/x
3. Step 3: Cross multiply
   3,994,406x = 8,548,684 × 8,548,684
4. Step 4: Simplify right side
   3,994,406x = 73,079,998,131,856
5. Step 5: Solve for x
   x = 73,079,998,131,856/3,994,406
6. Step 6: Final answer
   x = 18,295,585.91