Finding the Third Proportional to 142,249.50 and 304,740

Step by Step Solution

1. Step 1: Write the proportion equation
   142,249.50 : 304,740 = 304,740 : x
2. Step 2: Convert to fraction form
   142,249.50/304,740 = 304,740/x
3. Step 3: Cross multiply
   142,249.50x = 304,740 × 304,740
4. Step 4: Simplify right side
   142,249.50x = 92,866,467,600
5. Step 5: Solve for x
   x = 92,866,467,600/142,249.50
6. Step 6: Final answer
   x = 652,842.14