Finding the Third Proportional to 3,836,172 and 8,394,768

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836,172 : 8,394,768 = 8,394,768 : x
2. Step 2: Convert to fraction form
   3,836,172/8,394,768 = 8,394,768/x
3. Step 3: Cross multiply
   3,836,172x = 8,394,768 × 8,394,768
4. Step 4: Simplify right side
   3,836,172x = 70,472,129,773,824
5. Step 5: Solve for x
   x = 70,472,129,773,824/3,836,172
6. Step 6: Final answer
   x = 18,370,430.15