Finding the Third Proportional to 57,061 and 123,143

Step by Step Solution

1. Step 1: Write the proportion equation
   57,061 : 123,143 = 123,143 : x
2. Step 2: Convert to fraction form
   57,061/123,143 = 123,143/x
3. Step 3: Cross multiply
   57,061x = 123,143 × 123,143
4. Step 4: Simplify right side
   57,061x = 15,164,198,449
5. Step 5: Solve for x
   x = 15,164,198,449/57,061
6. Step 6: Final answer
   x = 265,754.17