Finding the Third Proportional to 3,550,990 and 7,764,636

Step by Step Solution

1. Step 1: Write the proportion equation
   3,550,990 : 7,764,636 = 7,764,636 : x
2. Step 2: Convert to fraction form
   3,550,990/7,764,636 = 7,764,636/x
3. Step 3: Cross multiply
   3,550,990x = 7,764,636 × 7,764,636
4. Step 4: Simplify right side
   3,550,990x = 60,289,572,212,496
5. Step 5: Solve for x
   x = 60,289,572,212,496/3,550,990
6. Step 6: Final answer
   x = 16,978,243.31