Finding the Third Proportional to 12,882 and 28,221

Step by Step Solution

1. Step 1: Write the proportion equation
   12,882 : 28,221 = 28,221 : x
2. Step 2: Convert to fraction form
   12,882/28,221 = 28,221/x
3. Step 3: Cross multiply
   12,882x = 28,221 × 28,221
4. Step 4: Simplify right side
   12,882x = 796,424,841
5. Step 5: Solve for x
   x = 796,424,841/12,882
6. Step 6: Final answer
   x = 61,824.63