Finding the Third Proportional to 40,536 and 87,108

Step by Step Solution

1. Step 1: Write the proportion equation
   40,536 : 87,108 = 87,108 : x
2. Step 2: Convert to fraction form
   40,536/87,108 = 87,108/x
3. Step 3: Cross multiply
   40,536x = 87,108 × 87,108
4. Step 4: Simplify right side
   40,536x = 7,587,803,664
5. Step 5: Solve for x
   x = 7,587,803,664/40,536
6. Step 6: Final answer
   x = 187,186.79