Finding the Third Proportional to 10,815 and 17,352

Step by Step Solution

1. Step 1: Write the proportion equation
   10,815 : 17,352 = 17,352 : x
2. Step 2: Convert to fraction form
   10,815/17,352 = 17,352/x
3. Step 3: Cross multiply
   10,815x = 17,352 × 17,352
4. Step 4: Simplify right side
   10,815x = 301,091,904
5. Step 5: Solve for x
   x = 301,091,904/10,815
6. Step 6: Final answer
   x = 27,840.21