Finding the Third Proportional to 3,853,823 and 8,470,570

Step by Step Solution

1. Step 1: Write the proportion equation
   3,853,823 : 8,470,570 = 8,470,570 : x
2. Step 2: Convert to fraction form
   3,853,823/8,470,570 = 8,470,570/x
3. Step 3: Cross multiply
   3,853,823x = 8,470,570 × 8,470,570
4. Step 4: Simplify right side
   3,853,823x = 71,750,556,124,900
5. Step 5: Solve for x
   x = 71,750,556,124,900/3,853,823
6. Step 6: Final answer
   x = 18,618,020.63