Finding the Third Proportional to 389,020 and 844,434

Step by Step Solution

1. Step 1: Write the proportion equation
   389,020 : 844,434 = 844,434 : x
2. Step 2: Convert to fraction form
   389,020/844,434 = 844,434/x
3. Step 3: Cross multiply
   389,020x = 844,434 × 844,434
4. Step 4: Simplify right side
   389,020x = 713,068,780,356
5. Step 5: Solve for x
   x = 713,068,780,356/389,020
6. Step 6: Final answer
   x = 1,832,987.46