Finding the Third Proportional to 21,636 and 31,602

Step by Step Solution

1. Step 1: Write the proportion equation
   21,636 : 31,602 = 31,602 : x
2. Step 2: Convert to fraction form
   21,636/31,602 = 31,602/x
3. Step 3: Cross multiply
   21,636x = 31,602 × 31,602
4. Step 4: Simplify right side
   21,636x = 998,686,404
5. Step 5: Solve for x
   x = 998,686,404/21,636
6. Step 6: Final answer
   x = 46,158.55