Finding the Third Proportional to 142,227 and 212,935.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,227 : 212,935.50 = 212,935.50 : x
2. Step 2: Convert to fraction form
   142,227/212,935.50 = 212,935.50/x
3. Step 3: Cross multiply
   142,227x = 212,935.50 × 212,935.50
4. Step 4: Simplify right side
   142,227x = 45,341,527,160.25
5. Step 5: Solve for x
   x = 45,341,527,160.25/142,227
6. Step 6: Final answer
   x = 318,796.90