Finding the Third Proportional to 3,807,605 and 8,309,752

Step by Step Solution

1. Step 1: Write the proportion equation
   3,807,605 : 8,309,752 = 8,309,752 : x
2. Step 2: Convert to fraction form
   3,807,605/8,309,752 = 8,309,752/x
3. Step 3: Cross multiply
   3,807,605x = 8,309,752 × 8,309,752
4. Step 4: Simplify right side
   3,807,605x = 69,051,978,301,504
5. Step 5: Solve for x
   x = 69,051,978,301,504/3,807,605
6. Step 6: Final answer
   x = 18,135,278.82