Finding the Third Proportional to 60,469 and 139,871

Step by Step Solution

1. Step 1: Write the proportion equation
   60,469 : 139,871 = 139,871 : x
2. Step 2: Convert to fraction form
   60,469/139,871 = 139,871/x
3. Step 3: Cross multiply
   60,469x = 139,871 × 139,871
4. Step 4: Simplify right side
   60,469x = 19,563,896,641
5. Step 5: Solve for x
   x = 19,563,896,641/60,469
6. Step 6: Final answer
   x = 323,535.97