Finding the Third Proportional to 21,465 and 31,556

Step by Step Solution

1. Step 1: Write the proportion equation
   21,465 : 31,556 = 31,556 : x
2. Step 2: Convert to fraction form
   21,465/31,556 = 31,556/x
3. Step 3: Cross multiply
   21,465x = 31,556 × 31,556
4. Step 4: Simplify right side
   21,465x = 995,781,136
5. Step 5: Solve for x
   x = 995,781,136/21,465
6. Step 6: Final answer
   x = 46,390.92