Finding the Third Proportional to 142,938 and 304,870

Step by Step Solution

1. Step 1: Write the proportion equation
   142,938 : 304,870 = 304,870 : x
2. Step 2: Convert to fraction form
   142,938/304,870 = 304,870/x
3. Step 3: Cross multiply
   142,938x = 304,870 × 304,870
4. Step 4: Simplify right side
   142,938x = 92,945,716,900
5. Step 5: Solve for x
   x = 92,945,716,900/142,938
6. Step 6: Final answer
   x = 650,251.98