Finding the Third Proportional to 67,099.50 and 90,801

Step by Step Solution

1. Step 1: Write the proportion equation
   67,099.50 : 90,801 = 90,801 : x
2. Step 2: Convert to fraction form
   67,099.50/90,801 = 90,801/x
3. Step 3: Cross multiply
   67,099.50x = 90,801 × 90,801
4. Step 4: Simplify right side
   67,099.50x = 8,244,821,601
5. Step 5: Solve for x
   x = 8,244,821,601/67,099.50
6. Step 6: Final answer
   x = 122,874.56