Finding the Third Proportional to 139,653 and 303,605

Step by Step Solution

1. Step 1: Write the proportion equation
   139,653 : 303,605 = 303,605 : x
2. Step 2: Convert to fraction form
   139,653/303,605 = 303,605/x
3. Step 3: Cross multiply
   139,653x = 303,605 × 303,605
4. Step 4: Simplify right side
   139,653x = 92,175,996,025
5. Step 5: Solve for x
   x = 92,175,996,025/139,653
6. Step 6: Final answer
   x = 660,035.92