Finding the Third Proportional to 3,420,136 and 4,810,356

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,136 : 4,810,356 = 4,810,356 : x
2. Step 2: Convert to fraction form
   3,420,136/4,810,356 = 4,810,356/x
3. Step 3: Cross multiply
   3,420,136x = 4,810,356 × 4,810,356
4. Step 4: Simplify right side
   3,420,136x = 23,139,524,846,736
5. Step 5: Solve for x
   x = 23,139,524,846,736/3,420,136
6. Step 6: Final answer
   x = 6,765,673.89