Finding the Third Proportional to 4,183,168 and 8,868,620

Step by Step Solution

1. Step 1: Write the proportion equation
   4,183,168 : 8,868,620 = 8,868,620 : x
2. Step 2: Convert to fraction form
   4,183,168/8,868,620 = 8,868,620/x
3. Step 3: Cross multiply
   4,183,168x = 8,868,620 × 8,868,620
4. Step 4: Simplify right side
   4,183,168x = 78,652,420,704,400
5. Step 5: Solve for x
   x = 78,652,420,704,400/4,183,168
6. Step 6: Final answer
   x = 18,802,118.56