Finding the Third Proportional to 82,908 and 128,034

Step by Step Solution

1. Step 1: Write the proportion equation
   82,908 : 128,034 = 128,034 : x
2. Step 2: Convert to fraction form
   82,908/128,034 = 128,034/x
3. Step 3: Cross multiply
   82,908x = 128,034 × 128,034
4. Step 4: Simplify right side
   82,908x = 16,392,705,156
5. Step 5: Solve for x
   x = 16,392,705,156/82,908
6. Step 6: Final answer
   x = 197,721.63