Finding the Third Proportional to 137,068 and 300,380

Step by Step Solution

1. Step 1: Write the proportion equation
   137,068 : 300,380 = 300,380 : x
2. Step 2: Convert to fraction form
   137,068/300,380 = 300,380/x
3. Step 3: Cross multiply
   137,068x = 300,380 × 300,380
4. Step 4: Simplify right side
   137,068x = 90,228,144,400
5. Step 5: Solve for x
   x = 90,228,144,400/137,068
6. Step 6: Final answer
   x = 658,272.86