Finding the Third Proportional to 40,188 and 87,519

Step by Step Solution

1. Step 1: Write the proportion equation
   40,188 : 87,519 = 87,519 : x
2. Step 2: Convert to fraction form
   40,188/87,519 = 87,519/x
3. Step 3: Cross multiply
   40,188x = 87,519 × 87,519
4. Step 4: Simplify right side
   40,188x = 7,659,575,361
5. Step 5: Solve for x
   x = 7,659,575,361/40,188
6. Step 6: Final answer
   x = 190,593.59