Finding the Third Proportional to 11,679.19 and 17,146.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,679.19 : 17,146.69 = 17,146.69 : x
2. Step 2: Convert to fraction form
   11,679.19/17,146.69 = 17,146.69/x
3. Step 3: Cross multiply
   11,679.19x = 17,146.69 × 17,146.69
4. Step 4: Simplify right side
   11,679.19x = 294,008,892.22
5. Step 5: Solve for x
   x = 294,008,892.22/11,679.19
6. Step 6: Final answer
   x = 25,173.75