Finding the Third Proportional to 3,920,601 and 8,441,916

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,601 : 8,441,916 = 8,441,916 : x
2. Step 2: Convert to fraction form
   3,920,601/8,441,916 = 8,441,916/x
3. Step 3: Cross multiply
   3,920,601x = 8,441,916 × 8,441,916
4. Step 4: Simplify right side
   3,920,601x = 71,265,945,751,056
5. Step 5: Solve for x
   x = 71,265,945,751,056/3,920,601
6. Step 6: Final answer
   x = 18,177,301.32