Finding the Third Proportional to 57,919.50 and 126,912

Step by Step Solution

1. Step 1: Write the proportion equation
   57,919.50 : 126,912 = 126,912 : x
2. Step 2: Convert to fraction form
   57,919.50/126,912 = 126,912/x
3. Step 3: Cross multiply
   57,919.50x = 126,912 × 126,912
4. Step 4: Simplify right side
   57,919.50x = 16,106,655,744
5. Step 5: Solve for x
   x = 16,106,655,744/57,919.50
6. Step 6: Final answer
   x = 278,086.93