Finding the Third Proportional to 11,490.75 and 18,434.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,490.75 : 18,434.25 = 18,434.25 : x
2. Step 2: Convert to fraction form
   11,490.75/18,434.25 = 18,434.25/x
3. Step 3: Cross multiply
   11,490.75x = 18,434.25 × 18,434.25
4. Step 4: Simplify right side
   11,490.75x = 339,821,573.06
5. Step 5: Solve for x
   x = 339,821,573.06/11,490.75
6. Step 6: Final answer
   x = 29,573.49