Finding the Third Proportional to 13,230 and 21,271

Step by Step Solution

1. Step 1: Write the proportion equation
   13,230 : 21,271 = 21,271 : x
2. Step 2: Convert to fraction form
   13,230/21,271 = 21,271/x
3. Step 3: Cross multiply
   13,230x = 21,271 × 21,271
4. Step 4: Simplify right side
   13,230x = 452,455,441
5. Step 5: Solve for x
   x = 452,455,441/13,230
6. Step 6: Final answer
   x = 34,199.20