Finding the Third Proportional to 1,521,462 and 3,212,687

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,462 : 3,212,687 = 3,212,687 : x
2. Step 2: Convert to fraction form
   1,521,462/3,212,687 = 3,212,687/x
3. Step 3: Cross multiply
   1,521,462x = 3,212,687 × 3,212,687
4. Step 4: Simplify right side
   1,521,462x = 10,321,357,759,969
5. Step 5: Solve for x
   x = 10,321,357,759,969/1,521,462
6. Step 6: Final answer
   x = 6,783,841.96