Finding the Third Proportional to 21,217 and 30,164

Step by Step Solution

1. Step 1: Write the proportion equation
   21,217 : 30,164 = 30,164 : x
2. Step 2: Convert to fraction form
   21,217/30,164 = 30,164/x
3. Step 3: Cross multiply
   21,217x = 30,164 × 30,164
4. Step 4: Simplify right side
   21,217x = 909,866,896
5. Step 5: Solve for x
   x = 909,866,896/21,217
6. Step 6: Final answer
   x = 42,883.86