Finding the Third Proportional to 11,057 and 23,139

Step by Step Solution

1. Step 1: Write the proportion equation
   11,057 : 23,139 = 23,139 : x
2. Step 2: Convert to fraction form
   11,057/23,139 = 23,139/x
3. Step 3: Cross multiply
   11,057x = 23,139 × 23,139
4. Step 4: Simplify right side
   11,057x = 535,413,321
5. Step 5: Solve for x
   x = 535,413,321/11,057
6. Step 6: Final answer
   x = 48,423.02