Finding the Third Proportional to 3,910,220 and 8,177,962

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910,220 : 8,177,962 = 8,177,962 : x
2. Step 2: Convert to fraction form
   3,910,220/8,177,962 = 8,177,962/x
3. Step 3: Cross multiply
   3,910,220x = 8,177,962 × 8,177,962
4. Step 4: Simplify right side
   3,910,220x = 66,879,062,473,444
5. Step 5: Solve for x
   x = 66,879,062,473,444/3,910,220
6. Step 6: Final answer
   x = 17,103,657.20