Finding the Third Proportional to 319,304 and 500,892

Step by Step Solution

1. Step 1: Write the proportion equation
   319,304 : 500,892 = 500,892 : x
2. Step 2: Convert to fraction form
   319,304/500,892 = 500,892/x
3. Step 3: Cross multiply
   319,304x = 500,892 × 500,892
4. Step 4: Simplify right side
   319,304x = 250,892,795,664
5. Step 5: Solve for x
   x = 250,892,795,664/319,304
6. Step 6: Final answer
   x = 785,748.99