Finding the Third Proportional to 27,087 and 57,131

Step by Step Solution

1. Step 1: Write the proportion equation
   27,087 : 57,131 = 57,131 : x
2. Step 2: Convert to fraction form
   27,087/57,131 = 57,131/x
3. Step 3: Cross multiply
   27,087x = 57,131 × 57,131
4. Step 4: Simplify right side
   27,087x = 3,263,951,161
5. Step 5: Solve for x
   x = 3,263,951,161/27,087
6. Step 6: Final answer
   x = 120,498.81