Finding the Third Proportional to 57,160 and 123,860

Step by Step Solution

1. Step 1: Write the proportion equation
   57,160 : 123,860 = 123,860 : x
2. Step 2: Convert to fraction form
   57,160/123,860 = 123,860/x
3. Step 3: Cross multiply
   57,160x = 123,860 × 123,860
4. Step 4: Simplify right side
   57,160x = 15,341,299,600
5. Step 5: Solve for x
   x = 15,341,299,600/57,160
6. Step 6: Final answer
   x = 268,392.23