Finding the Third Proportional to 142,013 and 306,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,013 : 306,168.50 = 306,168.50 : x
2. Step 2: Convert to fraction form
   142,013/306,168.50 = 306,168.50/x
3. Step 3: Cross multiply
   142,013x = 306,168.50 × 306,168.50
4. Step 4: Simplify right side
   142,013x = 93,739,150,392.25
5. Step 5: Solve for x
   x = 93,739,150,392.25/142,013
6. Step 6: Final answer
   x = 660,074.43