Finding the Third Proportional to 339,970 and 500,059

Step by Step Solution

1. Step 1: Write the proportion equation
   339,970 : 500,059 = 500,059 : x
2. Step 2: Convert to fraction form
   339,970/500,059 = 500,059/x
3. Step 3: Cross multiply
   339,970x = 500,059 × 500,059
4. Step 4: Simplify right side
   339,970x = 250,059,003,481
5. Step 5: Solve for x
   x = 250,059,003,481/339,970
6. Step 6: Final answer
   x = 735,532.56