Finding the Third Proportional to 54,144 and 80,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,144 : 80,149.50 = 80,149.50 : x
2. Step 2: Convert to fraction form
   54,144/80,149.50 = 80,149.50/x
3. Step 3: Cross multiply
   54,144x = 80,149.50 × 80,149.50
4. Step 4: Simplify right side
   54,144x = 6,423,942,350.25
5. Step 5: Solve for x
   x = 6,423,942,350.25/54,144
6. Step 6: Final answer
   x = 118,645.51