Finding the Third Proportional to 3,807,590 and 8,309,695

Step by Step Solution

1. Step 1: Write the proportion equation
   3,807,590 : 8,309,695 = 8,309,695 : x
2. Step 2: Convert to fraction form
   3,807,590/8,309,695 = 8,309,695/x
3. Step 3: Cross multiply
   3,807,590x = 8,309,695 × 8,309,695
4. Step 4: Simplify right side
   3,807,590x = 69,051,030,993,025
5. Step 5: Solve for x
   x = 69,051,030,993,025/3,807,590
6. Step 6: Final answer
   x = 18,135,101.47