Finding the Third Proportional to 3,669,439 and 8,290,184

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,439 : 8,290,184 = 8,290,184 : x
2. Step 2: Convert to fraction form
   3,669,439/8,290,184 = 8,290,184/x
3. Step 3: Cross multiply
   3,669,439x = 8,290,184 × 8,290,184
4. Step 4: Simplify right side
   3,669,439x = 68,727,150,753,856
5. Step 5: Solve for x
   x = 68,727,150,753,856/3,669,439
6. Step 6: Final answer
   x = 18,729,607.10