Finding the Third Proportional to 72,871 and 156,919

Step by Step Solution

1. Step 1: Write the proportion equation
   72,871 : 156,919 = 156,919 : x
2. Step 2: Convert to fraction form
   72,871/156,919 = 156,919/x
3. Step 3: Cross multiply
   72,871x = 156,919 × 156,919
4. Step 4: Simplify right side
   72,871x = 24,623,572,561
5. Step 5: Solve for x
   x = 24,623,572,561/72,871
6. Step 6: Final answer
   x = 337,906.34