Finding the Third Proportional to 13,665 and 19,749

Step by Step Solution

1. Step 1: Write the proportion equation
   13,665 : 19,749 = 19,749 : x
2. Step 2: Convert to fraction form
   13,665/19,749 = 19,749/x
3. Step 3: Cross multiply
   13,665x = 19,749 × 19,749
4. Step 4: Simplify right side
   13,665x = 390,023,001
5. Step 5: Solve for x
   x = 390,023,001/13,665
6. Step 6: Final answer
   x = 28,541.75