Finding the Third Proportional to 142,401.50 and 303,208

Step by Step Solution

1. Step 1: Write the proportion equation
   142,401.50 : 303,208 = 303,208 : x
2. Step 2: Convert to fraction form
   142,401.50/303,208 = 303,208/x
3. Step 3: Cross multiply
   142,401.50x = 303,208 × 303,208
4. Step 4: Simplify right side
   142,401.50x = 91,935,091,264
5. Step 5: Solve for x
   x = 91,935,091,264/142,401.50
6. Step 6: Final answer
   x = 645,604.80