Finding the Third Proportional to 142,128 and 301,104

Step by Step Solution

1. Step 1: Write the proportion equation
   142,128 : 301,104 = 301,104 : x
2. Step 2: Convert to fraction form
   142,128/301,104 = 301,104/x
3. Step 3: Cross multiply
   142,128x = 301,104 × 301,104
4. Step 4: Simplify right side
   142,128x = 90,663,618,816
5. Step 5: Solve for x
   x = 90,663,618,816/142,128
6. Step 6: Final answer
   x = 637,901.18