Finding the Third Proportional to 142,447.50 and 332,790

Step by Step Solution

1. Step 1: Write the proportion equation
   142,447.50 : 332,790 = 332,790 : x
2. Step 2: Convert to fraction form
   142,447.50/332,790 = 332,790/x
3. Step 3: Cross multiply
   142,447.50x = 332,790 × 332,790
4. Step 4: Simplify right side
   142,447.50x = 110,749,184,100
5. Step 5: Solve for x
   x = 110,749,184,100/142,447.50
6. Step 6: Final answer
   x = 777,473.69