Finding the Third Proportional to 16,422 and 33,810

Step by Step Solution

1. Step 1: Write the proportion equation
   16,422 : 33,810 = 33,810 : x
2. Step 2: Convert to fraction form
   16,422/33,810 = 33,810/x
3. Step 3: Cross multiply
   16,422x = 33,810 × 33,810
4. Step 4: Simplify right side
   16,422x = 1,143,116,100
5. Step 5: Solve for x
   x = 1,143,116,100/16,422
6. Step 6: Final answer
   x = 69,608.82