Finding the Third Proportional to 4,129,019 and 8,855,807

Step by Step Solution

1. Step 1: Write the proportion equation
   4,129,019 : 8,855,807 = 8,855,807 : x
2. Step 2: Convert to fraction form
   4,129,019/8,855,807 = 8,855,807/x
3. Step 3: Cross multiply
   4,129,019x = 8,855,807 × 8,855,807
4. Step 4: Simplify right side
   4,129,019x = 78,425,317,621,249
5. Step 5: Solve for x
   x = 78,425,317,621,249/4,129,019
6. Step 6: Final answer
   x = 18,993,692.60