Finding the Third Proportional to 57,264 and 89,170

Step by Step Solution

1. Step 1: Write the proportion equation
   57,264 : 89,170 = 89,170 : x
2. Step 2: Convert to fraction form
   57,264/89,170 = 89,170/x
3. Step 3: Cross multiply
   57,264x = 89,170 × 89,170
4. Step 4: Simplify right side
   57,264x = 7,951,288,900
5. Step 5: Solve for x
   x = 7,951,288,900/57,264
6. Step 6: Final answer
   x = 138,853.19