Finding the Third Proportional to 80,172 and 124,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,172 : 124,255.50 = 124,255.50 : x
2. Step 2: Convert to fraction form
   80,172/124,255.50 = 124,255.50/x
3. Step 3: Cross multiply
   80,172x = 124,255.50 × 124,255.50
4. Step 4: Simplify right side
   80,172x = 15,439,429,280.25
5. Step 5: Solve for x
   x = 15,439,429,280.25/80,172
6. Step 6: Final answer
   x = 192,578.82