Finding the Third Proportional to 3,669,447 and 8,290,204

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,447 : 8,290,204 = 8,290,204 : x
2. Step 2: Convert to fraction form
   3,669,447/8,290,204 = 8,290,204/x
3. Step 3: Cross multiply
   3,669,447x = 8,290,204 × 8,290,204
4. Step 4: Simplify right side
   3,669,447x = 68,727,482,361,616
5. Step 5: Solve for x
   x = 68,727,482,361,616/3,669,447
6. Step 6: Final answer
   x = 18,729,656.64