Finding the Third Proportional to 1,644,326 and 3,586,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,326 : 3,586,672 = 3,586,672 : x
2. Step 2: Convert to fraction form
   1,644,326/3,586,672 = 3,586,672/x
3. Step 3: Cross multiply
   1,644,326x = 3,586,672 × 3,586,672
4. Step 4: Simplify right side
   1,644,326x = 12,864,216,035,584
5. Step 5: Solve for x
   x = 12,864,216,035,584/1,644,326
6. Step 6: Final answer
   x = 7,823,397.57