Finding the Third Proportional to 3,941,040 and 8,471,440

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,040 : 8,471,440 = 8,471,440 : x
2. Step 2: Convert to fraction form
   3,941,040/8,471,440 = 8,471,440/x
3. Step 3: Cross multiply
   3,941,040x = 8,471,440 × 8,471,440
4. Step 4: Simplify right side
   3,941,040x = 71,765,295,673,600
5. Step 5: Solve for x
   x = 71,765,295,673,600/3,941,040
6. Step 6: Final answer
   x = 18,209,735.42