Finding the Third Proportional to 36,123 and 87,018

Step by Step Solution

1. Step 1: Write the proportion equation
   36,123 : 87,018 = 87,018 : x
2. Step 2: Convert to fraction form
   36,123/87,018 = 87,018/x
3. Step 3: Cross multiply
   36,123x = 87,018 × 87,018
4. Step 4: Simplify right side
   36,123x = 7,572,132,324
5. Step 5: Solve for x
   x = 7,572,132,324/36,123
6. Step 6: Final answer
   x = 209,620.80