Finding the Third Proportional to 3,806,189 and 8,243,449

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806,189 : 8,243,449 = 8,243,449 : x
2. Step 2: Convert to fraction form
   3,806,189/8,243,449 = 8,243,449/x
3. Step 3: Cross multiply
   3,806,189x = 8,243,449 × 8,243,449
4. Step 4: Simplify right side
   3,806,189x = 67,954,451,415,601
5. Step 5: Solve for x
   x = 67,954,451,415,601/3,806,189
6. Step 6: Final answer
   x = 17,853,672.38