Finding the Third Proportional to 137,328 and 300,839

Step by Step Solution

1. Step 1: Write the proportion equation
   137,328 : 300,839 = 300,839 : x
2. Step 2: Convert to fraction form
   137,328/300,839 = 300,839/x
3. Step 3: Cross multiply
   137,328x = 300,839 × 300,839
4. Step 4: Simplify right side
   137,328x = 90,504,103,921
5. Step 5: Solve for x
   x = 90,504,103,921/137,328
6. Step 6: Final answer
   x = 659,036.06