Finding the Third Proportional to 3,853,825 and 8,470,574

Step by Step Solution

1. Step 1: Write the proportion equation
   3,853,825 : 8,470,574 = 8,470,574 : x
2. Step 2: Convert to fraction form
   3,853,825/8,470,574 = 8,470,574/x
3. Step 3: Cross multiply
   3,853,825x = 8,470,574 × 8,470,574
4. Step 4: Simplify right side
   3,853,825x = 71,750,623,889,476
5. Step 5: Solve for x
   x = 71,750,623,889,476/3,853,825
6. Step 6: Final answer
   x = 18,618,028.55