Finding the Third Proportional to 284,974 and 443,017

Step by Step Solution

1. Step 1: Write the proportion equation
   284,974 : 443,017 = 443,017 : x
2. Step 2: Convert to fraction form
   284,974/443,017 = 443,017/x
3. Step 3: Cross multiply
   284,974x = 443,017 × 443,017
4. Step 4: Simplify right side
   284,974x = 196,264,062,289
5. Step 5: Solve for x
   x = 196,264,062,289/284,974
6. Step 6: Final answer
   x = 688,708.66