Finding the Third Proportional to 40,086 and 87,003

Step by Step Solution

1. Step 1: Write the proportion equation
   40,086 : 87,003 = 87,003 : x
2. Step 2: Convert to fraction form
   40,086/87,003 = 87,003/x
3. Step 3: Cross multiply
   40,086x = 87,003 × 87,003
4. Step 4: Simplify right side
   40,086x = 7,569,522,009
5. Step 5: Solve for x
   x = 7,569,522,009/40,086
6. Step 6: Final answer
   x = 188,832.06