Finding the Third Proportional to 10,158 and 11,058

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158 : 11,058 = 11,058 : x
2. Step 2: Convert to fraction form
   10,158/11,058 = 11,058/x
3. Step 3: Cross multiply
   10,158x = 11,058 × 11,058
4. Step 4: Simplify right side
   10,158x = 122,279,364
5. Step 5: Solve for x
   x = 122,279,364/10,158
6. Step 6: Final answer
   x = 12,037.74