Finding the Third Proportional to 137,286 and 300,816

Step by Step Solution

1. Step 1: Write the proportion equation
   137,286 : 300,816 = 300,816 : x
2. Step 2: Convert to fraction form
   137,286/300,816 = 300,816/x
3. Step 3: Cross multiply
   137,286x = 300,816 × 300,816
4. Step 4: Simplify right side
   137,286x = 90,490,265,856
5. Step 5: Solve for x
   x = 90,490,265,856/137,286
6. Step 6: Final answer
   x = 659,136.88