Finding the Third Proportional to 17,209 and 23,221

Step by Step Solution

1. Step 1: Write the proportion equation
   17,209 : 23,221 = 23,221 : x
2. Step 2: Convert to fraction form
   17,209/23,221 = 23,221/x
3. Step 3: Cross multiply
   17,209x = 23,221 × 23,221
4. Step 4: Simplify right side
   17,209x = 539,214,841
5. Step 5: Solve for x
   x = 539,214,841/17,209
6. Step 6: Final answer
   x = 31,333.30