Finding the Third Proportional to 21,921 and 35,616

Step by Step Solution

1. Step 1: Write the proportion equation
   21,921 : 35,616 = 35,616 : x
2. Step 2: Convert to fraction form
   21,921/35,616 = 35,616/x
3. Step 3: Cross multiply
   21,921x = 35,616 × 35,616
4. Step 4: Simplify right side
   21,921x = 1,268,499,456
5. Step 5: Solve for x
   x = 1,268,499,456/21,921
6. Step 6: Final answer
   x = 57,866.86