Finding the Third Proportional to 82,657.69 and 168,817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,657.69 : 168,817.50 = 168,817.50 : x
2. Step 2: Convert to fraction form
   82,657.69/168,817.50 = 168,817.50/x
3. Step 3: Cross multiply
   82,657.69x = 168,817.50 × 168,817.50
4. Step 4: Simplify right side
   82,657.69x = 28,499,348,306.25
5. Step 5: Solve for x
   x = 28,499,348,306.25/82,657.69
6. Step 6: Final answer
   x = 344,787.63