Finding the Third Proportional to 3,669,494 and 8,290,322

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,494 : 8,290,322 = 8,290,322 : x
2. Step 2: Convert to fraction form
   3,669,494/8,290,322 = 8,290,322/x
3. Step 3: Cross multiply
   3,669,494x = 8,290,322 × 8,290,322
4. Step 4: Simplify right side
   3,669,494x = 68,729,438,863,684
5. Step 5: Solve for x
   x = 68,729,438,863,684/3,669,494
6. Step 6: Final answer
   x = 18,729,949.92