Finding the Third Proportional to 13,248 and 21,132

Step by Step Solution

1. Step 1: Write the proportion equation
   13,248 : 21,132 = 21,132 : x
2. Step 2: Convert to fraction form
   13,248/21,132 = 21,132/x
3. Step 3: Cross multiply
   13,248x = 21,132 × 21,132
4. Step 4: Simplify right side
   13,248x = 446,561,424
5. Step 5: Solve for x
   x = 446,561,424/13,248
6. Step 6: Final answer
   x = 33,707.84