Finding the Third Proportional to 11,512.13 and 19,171.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,512.13 : 19,171.69 = 19,171.69 : x
2. Step 2: Convert to fraction form
   11,512.13/19,171.69 = 19,171.69/x
3. Step 3: Cross multiply
   11,512.13x = 19,171.69 × 19,171.69
4. Step 4: Simplify right side
   11,512.13x = 367,553,601.60
5. Step 5: Solve for x
   x = 367,553,601.60/11,512.13
6. Step 6: Final answer
   x = 31,927.52