Finding the Third Proportional to 9,776 and 17,272

Step by Step Solution

1. Step 1: Write the proportion equation
   9,776 : 17,272 = 17,272 : x
2. Step 2: Convert to fraction form
   9,776/17,272 = 17,272/x
3. Step 3: Cross multiply
   9,776x = 17,272 × 17,272
4. Step 4: Simplify right side
   9,776x = 298,321,984
5. Step 5: Solve for x
   x = 298,321,984/9,776
6. Step 6: Final answer
   x = 30,515.75