Finding the Third Proportional to 139,063.50 and 303,504

Step by Step Solution

1. Step 1: Write the proportion equation
   139,063.50 : 303,504 = 303,504 : x
2. Step 2: Convert to fraction form
   139,063.50/303,504 = 303,504/x
3. Step 3: Cross multiply
   139,063.50x = 303,504 × 303,504
4. Step 4: Simplify right side
   139,063.50x = 92,114,678,016
5. Step 5: Solve for x
   x = 92,114,678,016/139,063.50
6. Step 6: Final answer
   x = 662,392.92