Finding the Third Proportional to 397,370 and 862,016

Step by Step Solution

1. Step 1: Write the proportion equation
   397,370 : 862,016 = 862,016 : x
2. Step 2: Convert to fraction form
   397,370/862,016 = 862,016/x
3. Step 3: Cross multiply
   397,370x = 862,016 × 862,016
4. Step 4: Simplify right side
   397,370x = 743,071,584,256
5. Step 5: Solve for x
   x = 743,071,584,256/397,370
6. Step 6: Final answer
   x = 1,869,974.04