Finding the Third Proportional to 411,442 and 617,162

Step by Step Solution

1. Step 1: Write the proportion equation
   411,442 : 617,162 = 617,162 : x
2. Step 2: Convert to fraction form
   411,442/617,162 = 617,162/x
3. Step 3: Cross multiply
   411,442x = 617,162 × 617,162
4. Step 4: Simplify right side
   411,442x = 380,888,934,244
5. Step 5: Solve for x
   x = 380,888,934,244/411,442
6. Step 6: Final answer
   x = 925,741.50