Finding the Third Proportional to 143,608 and 301,912

Step by Step Solution

1. Step 1: Write the proportion equation
   143,608 : 301,912 = 301,912 : x
2. Step 2: Convert to fraction form
   143,608/301,912 = 301,912/x
3. Step 3: Cross multiply
   143,608x = 301,912 × 301,912
4. Step 4: Simplify right side
   143,608x = 91,150,855,744
5. Step 5: Solve for x
   x = 91,150,855,744/143,608
6. Step 6: Final answer
   x = 634,719.90