Finding the Third Proportional to 384,842 and 844,040

Step by Step Solution

1. Step 1: Write the proportion equation
   384,842 : 844,040 = 844,040 : x
2. Step 2: Convert to fraction form
   384,842/844,040 = 844,040/x
3. Step 3: Cross multiply
   384,842x = 844,040 × 844,040
4. Step 4: Simplify right side
   384,842x = 712,403,521,600
5. Step 5: Solve for x
   x = 712,403,521,600/384,842
6. Step 6: Final answer
   x = 1,851,158.45