Finding the Third Proportional to 142,803 and 303,942

Step by Step Solution

1. Step 1: Write the proportion equation
   142,803 : 303,942 = 303,942 : x
2. Step 2: Convert to fraction form
   142,803/303,942 = 303,942/x
3. Step 3: Cross multiply
   142,803x = 303,942 × 303,942
4. Step 4: Simplify right side
   142,803x = 92,380,739,364
5. Step 5: Solve for x
   x = 92,380,739,364/142,803
6. Step 6: Final answer
   x = 646,910.35