Finding the Third Proportional to 40,531 and 89,243

Step by Step Solution

1. Step 1: Write the proportion equation
   40,531 : 89,243 = 89,243 : x
2. Step 2: Convert to fraction form
   40,531/89,243 = 89,243/x
3. Step 3: Cross multiply
   40,531x = 89,243 × 89,243
4. Step 4: Simplify right side
   40,531x = 7,964,313,049
5. Step 5: Solve for x
   x = 7,964,313,049/40,531
6. Step 6: Final answer
   x = 196,499.30