Finding the Third Proportional to 142,267.50 and 304,821

Step by Step Solution

1. Step 1: Write the proportion equation
   142,267.50 : 304,821 = 304,821 : x
2. Step 2: Convert to fraction form
   142,267.50/304,821 = 304,821/x
3. Step 3: Cross multiply
   142,267.50x = 304,821 × 304,821
4. Step 4: Simplify right side
   142,267.50x = 92,915,842,041
5. Step 5: Solve for x
   x = 92,915,842,041/142,267.50
6. Step 6: Final answer
   x = 653,106.59