Finding the Third Proportional to 297,320 and 423,836

Step by Step Solution

1. Step 1: Write the proportion equation
   297,320 : 423,836 = 423,836 : x
2. Step 2: Convert to fraction form
   297,320/423,836 = 423,836/x
3. Step 3: Cross multiply
   297,320x = 423,836 × 423,836
4. Step 4: Simplify right side
   297,320x = 179,636,954,896
5. Step 5: Solve for x
   x = 179,636,954,896/297,320
6. Step 6: Final answer
   x = 604,187.26