Finding the Third Proportional to 90,156 and 192,819

Step by Step Solution

1. Step 1: Write the proportion equation
   90,156 : 192,819 = 192,819 : x
2. Step 2: Convert to fraction form
   90,156/192,819 = 192,819/x
3. Step 3: Cross multiply
   90,156x = 192,819 × 192,819
4. Step 4: Simplify right side
   90,156x = 37,179,166,761
5. Step 5: Solve for x
   x = 37,179,166,761/90,156
6. Step 6: Final answer
   x = 412,387.05