Finding the Third Proportional to 417,934 and 609,384

Step by Step Solution

1. Step 1: Write the proportion equation
   417,934 : 609,384 = 609,384 : x
2. Step 2: Convert to fraction form
   417,934/609,384 = 609,384/x
3. Step 3: Cross multiply
   417,934x = 609,384 × 609,384
4. Step 4: Simplify right side
   417,934x = 371,348,859,456
5. Step 5: Solve for x
   x = 371,348,859,456/417,934
6. Step 6: Final answer
   x = 888,534.70