Finding the Third Proportional to 142,449.50 and 303,967

Step by Step Solution

1. Step 1: Write the proportion equation
   142,449.50 : 303,967 = 303,967 : x
2. Step 2: Convert to fraction form
   142,449.50/303,967 = 303,967/x
3. Step 3: Cross multiply
   142,449.50x = 303,967 × 303,967
4. Step 4: Simplify right side
   142,449.50x = 92,395,937,089
5. Step 5: Solve for x
   x = 92,395,937,089/142,449.50
6. Step 6: Final answer
   x = 648,622.40