Finding the Third Proportional to 139,680 and 303,656

Step by Step Solution

1. Step 1: Write the proportion equation
   139,680 : 303,656 = 303,656 : x
2. Step 2: Convert to fraction form
   139,680/303,656 = 303,656/x
3. Step 3: Cross multiply
   139,680x = 303,656 × 303,656
4. Step 4: Simplify right side
   139,680x = 92,206,966,336
5. Step 5: Solve for x
   x = 92,206,966,336/139,680
6. Step 6: Final answer
   x = 660,130.06