Finding the Third Proportional to 39,676.50 and 57,321

Step by Step Solution

1. Step 1: Write the proportion equation
   39,676.50 : 57,321 = 57,321 : x
2. Step 2: Convert to fraction form
   39,676.50/57,321 = 57,321/x
3. Step 3: Cross multiply
   39,676.50x = 57,321 × 57,321
4. Step 4: Simplify right side
   39,676.50x = 3,285,697,041
5. Step 5: Solve for x
   x = 3,285,697,041/39,676.50
6. Step 6: Final answer
   x = 82,812.17