Finding the Third Proportional to 1,860,566 and 4,018,540

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860,566 : 4,018,540 = 4,018,540 : x
2. Step 2: Convert to fraction form
   1,860,566/4,018,540 = 4,018,540/x
3. Step 3: Cross multiply
   1,860,566x = 4,018,540 × 4,018,540
4. Step 4: Simplify right side
   1,860,566x = 16,148,663,731,600
5. Step 5: Solve for x
   x = 16,148,663,731,600/1,860,566
6. Step 6: Final answer
   x = 8,679,436.11