Finding the Third Proportional to 21,095 and 43,243

Step by Step Solution

1. Step 1: Write the proportion equation
   21,095 : 43,243 = 43,243 : x
2. Step 2: Convert to fraction form
   21,095/43,243 = 43,243/x
3. Step 3: Cross multiply
   21,095x = 43,243 × 43,243
4. Step 4: Simplify right side
   21,095x = 1,869,957,049
5. Step 5: Solve for x
   x = 1,869,957,049/21,095
6. Step 6: Final answer
   x = 88,644.56