Finding the Third Proportional to 3,798,619 and 8,317,660

Step by Step Solution

1. Step 1: Write the proportion equation
   3,798,619 : 8,317,660 = 8,317,660 : x
2. Step 2: Convert to fraction form
   3,798,619/8,317,660 = 8,317,660/x
3. Step 3: Cross multiply
   3,798,619x = 8,317,660 × 8,317,660
4. Step 4: Simplify right side
   3,798,619x = 69,183,467,875,600
5. Step 5: Solve for x
   x = 69,183,467,875,600/3,798,619
6. Step 6: Final answer
   x = 18,212,794.67