Finding the Third Proportional to 142,155 and 301,806

Step by Step Solution

1. Step 1: Write the proportion equation
   142,155 : 301,806 = 301,806 : x
2. Step 2: Convert to fraction form
   142,155/301,806 = 301,806/x
3. Step 3: Cross multiply
   142,155x = 301,806 × 301,806
4. Step 4: Simplify right side
   142,155x = 91,086,861,636
5. Step 5: Solve for x
   x = 91,086,861,636/142,155
6. Step 6: Final answer
   x = 640,757.35