Finding the Third Proportional to 11,745 and 17,989.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,745 : 17,989.59 = 17,989.59 : x
2. Step 2: Convert to fraction form
   11,745/17,989.59 = 17,989.59/x
3. Step 3: Cross multiply
   11,745x = 17,989.59 × 17,989.59
4. Step 4: Simplify right side
   11,745x = 323,625,483.29
5. Step 5: Solve for x
   x = 323,625,483.29/11,745
6. Step 6: Final answer
   x = 27,554.32