Finding the Third Proportional to 3,857,690 and 8,296,028

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857,690 : 8,296,028 = 8,296,028 : x
2. Step 2: Convert to fraction form
   3,857,690/8,296,028 = 8,296,028/x
3. Step 3: Cross multiply
   3,857,690x = 8,296,028 × 8,296,028
4. Step 4: Simplify right side
   3,857,690x = 68,824,080,576,784
5. Step 5: Solve for x
   x = 68,824,080,576,784/3,857,690
6. Step 6: Final answer
   x = 17,840,749.41