Finding the Third Proportional to 815,392 and 1,729,456

Step by Step Solution

1. Step 1: Write the proportion equation
   815,392 : 1,729,456 = 1,729,456 : x
2. Step 2: Convert to fraction form
   815,392/1,729,456 = 1,729,456/x
3. Step 3: Cross multiply
   815,392x = 1,729,456 × 1,729,456
4. Step 4: Simplify right side
   815,392x = 2,991,018,055,936
5. Step 5: Solve for x
   x = 2,991,018,055,936/815,392
6. Step 6: Final answer
   x = 3,668,196.47