Finding the Third Proportional to 21,312 and 30,996

Step by Step Solution

1. Step 1: Write the proportion equation
   21,312 : 30,996 = 30,996 : x
2. Step 2: Convert to fraction form
   21,312/30,996 = 30,996/x
3. Step 3: Cross multiply
   21,312x = 30,996 × 30,996
4. Step 4: Simplify right side
   21,312x = 960,752,016
5. Step 5: Solve for x
   x = 960,752,016/21,312
6. Step 6: Final answer
   x = 45,080.33