Finding the Third Proportional to 135,949.50 and 300,042

Step by Step Solution

1. Step 1: Write the proportion equation
   135,949.50 : 300,042 = 300,042 : x
2. Step 2: Convert to fraction form
   135,949.50/300,042 = 300,042/x
3. Step 3: Cross multiply
   135,949.50x = 300,042 × 300,042
4. Step 4: Simplify right side
   135,949.50x = 90,025,201,764
5. Step 5: Solve for x
   x = 90,025,201,764/135,949.50
6. Step 6: Final answer
   x = 662,195.90