Finding the Third Proportional to 82,604 and 131,287

Step by Step Solution

1. Step 1: Write the proportion equation
   82,604 : 131,287 = 131,287 : x
2. Step 2: Convert to fraction form
   82,604/131,287 = 131,287/x
3. Step 3: Cross multiply
   82,604x = 131,287 × 131,287
4. Step 4: Simplify right side
   82,604x = 17,236,276,369
5. Step 5: Solve for x
   x = 17,236,276,369/82,604
6. Step 6: Final answer
   x = 208,661.52