Finding the Third Proportional to 1,404,947 and 3,315,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,947 : 3,315,456 = 3,315,456 : x
2. Step 2: Convert to fraction form
   1,404,947/3,315,456 = 3,315,456/x
3. Step 3: Cross multiply
   1,404,947x = 3,315,456 × 3,315,456
4. Step 4: Simplify right side
   1,404,947x = 10,992,248,487,936
5. Step 5: Solve for x
   x = 10,992,248,487,936/1,404,947
6. Step 6: Final answer
   x = 7,823,959.54