Finding the Third Proportional to 137,312 and 300,868

Step by Step Solution

1. Step 1: Write the proportion equation
   137,312 : 300,868 = 300,868 : x
2. Step 2: Convert to fraction form
   137,312/300,868 = 300,868/x
3. Step 3: Cross multiply
   137,312x = 300,868 × 300,868
4. Step 4: Simplify right side
   137,312x = 90,521,553,424
5. Step 5: Solve for x
   x = 90,521,553,424/137,312
6. Step 6: Final answer
   x = 659,239.93