Finding the Third Proportional to 59,454 and 128,871

Step by Step Solution

1. Step 1: Write the proportion equation
   59,454 : 128,871 = 128,871 : x
2. Step 2: Convert to fraction form
   59,454/128,871 = 128,871/x
3. Step 3: Cross multiply
   59,454x = 128,871 × 128,871
4. Step 4: Simplify right side
   59,454x = 16,607,734,641
5. Step 5: Solve for x
   x = 16,607,734,641/59,454
6. Step 6: Final answer
   x = 279,337.55