Finding the Third Proportional to 13,570 and 21,009

Step by Step Solution

1. Step 1: Write the proportion equation
   13,570 : 21,009 = 21,009 : x
2. Step 2: Convert to fraction form
   13,570/21,009 = 21,009/x
3. Step 3: Cross multiply
   13,570x = 21,009 × 21,009
4. Step 4: Simplify right side
   13,570x = 441,378,081
5. Step 5: Solve for x
   x = 441,378,081/13,570
6. Step 6: Final answer
   x = 32,526.02