Finding the Third Proportional to 2,609,851 and 3,992,778

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,851 : 3,992,778 = 3,992,778 : x
2. Step 2: Convert to fraction form
   2,609,851/3,992,778 = 3,992,778/x
3. Step 3: Cross multiply
   2,609,851x = 3,992,778 × 3,992,778
4. Step 4: Simplify right side
   2,609,851x = 15,942,276,157,284
5. Step 5: Solve for x
   x = 15,942,276,157,284/2,609,851
6. Step 6: Final answer
   x = 6,108,500.51