Finding the Third Proportional to 40,522 and 87,287

Step by Step Solution

1. Step 1: Write the proportion equation
   40,522 : 87,287 = 87,287 : x
2. Step 2: Convert to fraction form
   40,522/87,287 = 87,287/x
3. Step 3: Cross multiply
   40,522x = 87,287 × 87,287
4. Step 4: Simplify right side
   40,522x = 7,619,020,369
5. Step 5: Solve for x
   x = 7,619,020,369/40,522
6. Step 6: Final answer
   x = 188,021.82