Finding the Third Proportional to 71,291 and 99,667

Step by Step Solution

1. Step 1: Write the proportion equation
   71,291 : 99,667 = 99,667 : x
2. Step 2: Convert to fraction form
   71,291/99,667 = 99,667/x
3. Step 3: Cross multiply
   71,291x = 99,667 × 99,667
4. Step 4: Simplify right side
   71,291x = 9,933,510,889
5. Step 5: Solve for x
   x = 9,933,510,889/71,291
6. Step 6: Final answer
   x = 139,337.52