Finding the Third Proportional to 13,128.75 and 17,236.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,128.75 : 17,236.13 = 17,236.13 : x
2. Step 2: Convert to fraction form
   13,128.75/17,236.13 = 17,236.13/x
3. Step 3: Cross multiply
   13,128.75x = 17,236.13 × 17,236.13
4. Step 4: Simplify right side
   13,128.75x = 297,084,005.02
5. Step 5: Solve for x
   x = 297,084,005.02/13,128.75
6. Step 6: Final answer
   x = 22,628.51