Finding the Third Proportional to 90,156.38 and 192,819.94

Step by Step Solution

1. Step 1: Write the proportion equation
   90,156.38 : 192,819.94 = 192,819.94 : x
2. Step 2: Convert to fraction form
   90,156.38/192,819.94 = 192,819.94/x
3. Step 3: Cross multiply
   90,156.38x = 192,819.94 × 192,819.94
4. Step 4: Simplify right side
   90,156.38x = 37,179,528,297.50
5. Step 5: Solve for x
   x = 37,179,528,297.50/90,156.38
6. Step 6: Final answer
   x = 412,389.34