Finding the Third Proportional to 155,128 and 335,012

Step by Step Solution

1. Step 1: Write the proportion equation
   155,128 : 335,012 = 335,012 : x
2. Step 2: Convert to fraction form
   155,128/335,012 = 335,012/x
3. Step 3: Cross multiply
   155,128x = 335,012 × 335,012
4. Step 4: Simplify right side
   155,128x = 112,233,040,144
5. Step 5: Solve for x
   x = 112,233,040,144/155,128
6. Step 6: Final answer
   x = 723,486.67