Finding the Third Proportional to 142,440 and 303,948.75

Step by Step Solution

1. Step 1: Write the proportion equation
   142,440 : 303,948.75 = 303,948.75 : x
2. Step 2: Convert to fraction form
   142,440/303,948.75 = 303,948.75/x
3. Step 3: Cross multiply
   142,440x = 303,948.75 × 303,948.75
4. Step 4: Simplify right side
   142,440x = 92,384,842,626.56
5. Step 5: Solve for x
   x = 92,384,842,626.56/142,440
6. Step 6: Final answer
   x = 648,587.77