Finding the Third Proportional to 3,926,040 and 8,470,704

Step by Step Solution

1. Step 1: Write the proportion equation
   3,926,040 : 8,470,704 = 8,470,704 : x
2. Step 2: Convert to fraction form
   3,926,040/8,470,704 = 8,470,704/x
3. Step 3: Cross multiply
   3,926,040x = 8,470,704 × 8,470,704
4. Step 4: Simplify right side
   3,926,040x = 71,752,826,255,616
5. Step 5: Solve for x
   x = 71,752,826,255,616/3,926,040
6. Step 6: Final answer
   x = 18,276,132.25