Finding the Third Proportional to 139,348 and 304,872

Step by Step Solution

1. Step 1: Write the proportion equation
   139,348 : 304,872 = 304,872 : x
2. Step 2: Convert to fraction form
   139,348/304,872 = 304,872/x
3. Step 3: Cross multiply
   139,348x = 304,872 × 304,872
4. Step 4: Simplify right side
   139,348x = 92,946,936,384
5. Step 5: Solve for x
   x = 92,946,936,384/139,348
6. Step 6: Final answer
   x = 667,013.06