Finding the Third Proportional to 173,834 and 418,638

Step by Step Solution

1. Step 1: Write the proportion equation
   173,834 : 418,638 = 418,638 : x
2. Step 2: Convert to fraction form
   173,834/418,638 = 418,638/x
3. Step 3: Cross multiply
   173,834x = 418,638 × 418,638
4. Step 4: Simplify right side
   173,834x = 175,257,775,044
5. Step 5: Solve for x
   x = 175,257,775,044/173,834
6. Step 6: Final answer
   x = 1,008,190.43