Finding the Third Proportional to 131,682 and 204,210

Step by Step Solution

1. Step 1: Write the proportion equation
   131,682 : 204,210 = 204,210 : x
2. Step 2: Convert to fraction form
   131,682/204,210 = 204,210/x
3. Step 3: Cross multiply
   131,682x = 204,210 × 204,210
4. Step 4: Simplify right side
   131,682x = 41,701,724,100
5. Step 5: Solve for x
   x = 41,701,724,100/131,682
6. Step 6: Final answer
   x = 316,685.08