Finding the Third Proportional to 142,938 and 304,860

Step by Step Solution

1. Step 1: Write the proportion equation
   142,938 : 304,860 = 304,860 : x
2. Step 2: Convert to fraction form
   142,938/304,860 = 304,860/x
3. Step 3: Cross multiply
   142,938x = 304,860 × 304,860
4. Step 4: Simplify right side
   142,938x = 92,939,619,600
5. Step 5: Solve for x
   x = 92,939,619,600/142,938
6. Step 6: Final answer
   x = 650,209.32