Finding the Third Proportional to 3,400,785 and 7,185,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,400,785 : 7,185,456 = 7,185,456 : x
2. Step 2: Convert to fraction form
   3,400,785/7,185,456 = 7,185,456/x
3. Step 3: Cross multiply
   3,400,785x = 7,185,456 × 7,185,456
4. Step 4: Simplify right side
   3,400,785x = 51,630,777,927,936
5. Step 5: Solve for x
   x = 51,630,777,927,936/3,400,785
6. Step 6: Final answer
   x = 15,182,017.66