Finding the Third Proportional to 139,386 and 303,108

Step by Step Solution

1. Step 1: Write the proportion equation
   139,386 : 303,108 = 303,108 : x
2. Step 2: Convert to fraction form
   139,386/303,108 = 303,108/x
3. Step 3: Cross multiply
   139,386x = 303,108 × 303,108
4. Step 4: Simplify right side
   139,386x = 91,874,459,664
5. Step 5: Solve for x
   x = 91,874,459,664/139,386
6. Step 6: Final answer
   x = 659,136.93