Finding the Third Proportional to 1,860,604 and 4,018,616

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860,604 : 4,018,616 = 4,018,616 : x
2. Step 2: Convert to fraction form
   1,860,604/4,018,616 = 4,018,616/x
3. Step 3: Cross multiply
   1,860,604x = 4,018,616 × 4,018,616
4. Step 4: Simplify right side
   1,860,604x = 16,149,274,555,456
5. Step 5: Solve for x
   x = 16,149,274,555,456/1,860,604
6. Step 6: Final answer
   x = 8,679,587.14