Finding the Third Proportional to 155,871 and 251,019.75

Step by Step Solution

1. Step 1: Write the proportion equation
   155,871 : 251,019.75 = 251,019.75 : x
2. Step 2: Convert to fraction form
   155,871/251,019.75 = 251,019.75/x
3. Step 3: Cross multiply
   155,871x = 251,019.75 × 251,019.75
4. Step 4: Simplify right side
   155,871x = 63,010,914,890.06
5. Step 5: Solve for x
   x = 63,010,914,890.06/155,871
6. Step 6: Final answer
   x = 404,250.41