Finding the Third Proportional to 11,892.76 and 26,139.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.76 : 26,139.59 = 26,139.59 : x
2. Step 2: Convert to fraction form
   11,892.76/26,139.59 = 26,139.59/x
3. Step 3: Cross multiply
   11,892.76x = 26,139.59 × 26,139.59
4. Step 4: Simplify right side
   11,892.76x = 683,277,952.98
5. Step 5: Solve for x
   x = 683,277,952.98/11,892.76
6. Step 6: Final answer
   x = 57,453.26