Finding the Third Proportional to 139,800 and 304,176

Step by Step Solution

1. Step 1: Write the proportion equation
   139,800 : 304,176 = 304,176 : x
2. Step 2: Convert to fraction form
   139,800/304,176 = 304,176/x
3. Step 3: Cross multiply
   139,800x = 304,176 × 304,176
4. Step 4: Simplify right side
   139,800x = 92,523,038,976
5. Step 5: Solve for x
   x = 92,523,038,976/139,800
6. Step 6: Final answer
   x = 661,824.31