Finding the Third Proportional to 139,336 and 303,536

Step by Step Solution

1. Step 1: Write the proportion equation
   139,336 : 303,536 = 303,536 : x
2. Step 2: Convert to fraction form
   139,336/303,536 = 303,536/x
3. Step 3: Cross multiply
   139,336x = 303,536 × 303,536
4. Step 4: Simplify right side
   139,336x = 92,134,103,296
5. Step 5: Solve for x
   x = 92,134,103,296/139,336
6. Step 6: Final answer
   x = 661,236.89