Finding the Third Proportional to 68,978 and 150,871

Step by Step Solution

1. Step 1: Write the proportion equation
   68,978 : 150,871 = 150,871 : x
2. Step 2: Convert to fraction form
   68,978/150,871 = 150,871/x
3. Step 3: Cross multiply
   68,978x = 150,871 × 150,871
4. Step 4: Simplify right side
   68,978x = 22,762,058,641
5. Step 5: Solve for x
   x = 22,762,058,641/68,978
6. Step 6: Final answer
   x = 329,990.12