Finding the Third Proportional to 55,441 and 86,871

Step by Step Solution

1. Step 1: Write the proportion equation
   55,441 : 86,871 = 86,871 : x
2. Step 2: Convert to fraction form
   55,441/86,871 = 86,871/x
3. Step 3: Cross multiply
   55,441x = 86,871 × 86,871
4. Step 4: Simplify right side
   55,441x = 7,546,570,641
5. Step 5: Solve for x
   x = 7,546,570,641/55,441
6. Step 6: Final answer
   x = 136,118.95