Finding the Third Proportional to 322,076 and 699,648

Step by Step Solution

1. Step 1: Write the proportion equation
   322,076 : 699,648 = 699,648 : x
2. Step 2: Convert to fraction form
   322,076/699,648 = 699,648/x
3. Step 3: Cross multiply
   322,076x = 699,648 × 699,648
4. Step 4: Simplify right side
   322,076x = 489,507,323,904
5. Step 5: Solve for x
   x = 489,507,323,904/322,076
6. Step 6: Final answer
   x = 1,519,850.36