Finding the Third Proportional to 128,282 and 191,055

Step by Step Solution

1. Step 1: Write the proportion equation
   128,282 : 191,055 = 191,055 : x
2. Step 2: Convert to fraction form
   128,282/191,055 = 191,055/x
3. Step 3: Cross multiply
   128,282x = 191,055 × 191,055
4. Step 4: Simplify right side
   128,282x = 36,502,013,025
5. Step 5: Solve for x
   x = 36,502,013,025/128,282
6. Step 6: Final answer
   x = 284,545.09