Finding the Third Proportional to 139,540 and 303,966

Step by Step Solution

1. Step 1: Write the proportion equation
   139,540 : 303,966 = 303,966 : x
2. Step 2: Convert to fraction form
   139,540/303,966 = 303,966/x
3. Step 3: Cross multiply
   139,540x = 303,966 × 303,966
4. Step 4: Simplify right side
   139,540x = 92,395,329,156
5. Step 5: Solve for x
   x = 92,395,329,156/139,540
6. Step 6: Final answer
   x = 662,142.25