Finding the Third Proportional to 404,406 and 619,482

Step by Step Solution

1. Step 1: Write the proportion equation
   404,406 : 619,482 = 619,482 : x
2. Step 2: Convert to fraction form
   404,406/619,482 = 619,482/x
3. Step 3: Cross multiply
   404,406x = 619,482 × 619,482
4. Step 4: Simplify right side
   404,406x = 383,757,948,324
5. Step 5: Solve for x
   x = 383,757,948,324/404,406
6. Step 6: Final answer
   x = 948,942.27