Finding the Third Proportional to 3,600,636 and 7,819,450

Step by Step Solution

1. Step 1: Write the proportion equation
   3,600,636 : 7,819,450 = 7,819,450 : x
2. Step 2: Convert to fraction form
   3,600,636/7,819,450 = 7,819,450/x
3. Step 3: Cross multiply
   3,600,636x = 7,819,450 × 7,819,450
4. Step 4: Simplify right side
   3,600,636x = 61,143,798,302,500
5. Step 5: Solve for x
   x = 61,143,798,302,500/3,600,636
6. Step 6: Final answer
   x = 16,981,388.37