Finding the Third Proportional to 561,168 and 839,538

Step by Step Solution

1. Step 1: Write the proportion equation
   561,168 : 839,538 = 839,538 : x
2. Step 2: Convert to fraction form
   561,168/839,538 = 839,538/x
3. Step 3: Cross multiply
   561,168x = 839,538 × 839,538
4. Step 4: Simplify right side
   561,168x = 704,824,053,444
5. Step 5: Solve for x
   x = 704,824,053,444/561,168
6. Step 6: Final answer
   x = 1,255,994.73