Finding the Third Proportional to 3,860,277 and 8,355,990

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860,277 : 8,355,990 = 8,355,990 : x
2. Step 2: Convert to fraction form
   3,860,277/8,355,990 = 8,355,990/x
3. Step 3: Cross multiply
   3,860,277x = 8,355,990 × 8,355,990
4. Step 4: Simplify right side
   3,860,277x = 69,822,568,880,100
5. Step 5: Solve for x
   x = 69,822,568,880,100/3,860,277
6. Step 6: Final answer
   x = 18,087,450.43