Finding the Third Proportional to 458,144 and 997,605

Step by Step Solution

1. Step 1: Write the proportion equation
   458,144 : 997,605 = 997,605 : x
2. Step 2: Convert to fraction form
   458,144/997,605 = 997,605/x
3. Step 3: Cross multiply
   458,144x = 997,605 × 997,605
4. Step 4: Simplify right side
   458,144x = 995,215,736,025
5. Step 5: Solve for x
   x = 995,215,736,025/458,144
6. Step 6: Final answer
   x = 2,172,277.14