Finding the Third Proportional to 90,471.94 and 192,964.78

Step by Step Solution

1. Step 1: Write the proportion equation
   90,471.94 : 192,964.78 = 192,964.78 : x
2. Step 2: Convert to fraction form
   90,471.94/192,964.78 = 192,964.78/x
3. Step 3: Cross multiply
   90,471.94x = 192,964.78 × 192,964.78
4. Step 4: Simplify right side
   90,471.94x = 37,235,406,802.86
5. Step 5: Solve for x
   x = 37,235,406,802.86/90,471.94
6. Step 6: Final answer
   x = 411,568.58