Finding the Third Proportional to 57,710 and 126,748

Step by Step Solution

1. Step 1: Write the proportion equation
   57,710 : 126,748 = 126,748 : x
2. Step 2: Convert to fraction form
   57,710/126,748 = 126,748/x
3. Step 3: Cross multiply
   57,710x = 126,748 × 126,748
4. Step 4: Simplify right side
   57,710x = 16,065,055,504
5. Step 5: Solve for x
   x = 16,065,055,504/57,710
6. Step 6: Final answer
   x = 278,375.59