Finding the Third Proportional to 55,185 and 87,441

Step by Step Solution

1. Step 1: Write the proportion equation
   55,185 : 87,441 = 87,441 : x
2. Step 2: Convert to fraction form
   55,185/87,441 = 87,441/x
3. Step 3: Cross multiply
   55,185x = 87,441 × 87,441
4. Step 4: Simplify right side
   55,185x = 7,645,928,481
5. Step 5: Solve for x
   x = 7,645,928,481/55,185
6. Step 6: Final answer
   x = 138,550.85