Finding the Third Proportional to 389,018 and 844,429

Step by Step Solution

1. Step 1: Write the proportion equation
   389,018 : 844,429 = 844,429 : x
2. Step 2: Convert to fraction form
   389,018/844,429 = 844,429/x
3. Step 3: Cross multiply
   389,018x = 844,429 × 844,429
4. Step 4: Simplify right side
   389,018x = 713,060,336,041
5. Step 5: Solve for x
   x = 713,060,336,041/389,018
6. Step 6: Final answer
   x = 1,832,975.17