Finding the Third Proportional to 192,123 and 417,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,123 : 417,469.50 = 417,469.50 : x
2. Step 2: Convert to fraction form
   192,123/417,469.50 = 417,469.50/x
3. Step 3: Cross multiply
   192,123x = 417,469.50 × 417,469.50
4. Step 4: Simplify right side
   192,123x = 174,280,783,430.25
5. Step 5: Solve for x
   x = 174,280,783,430.25/192,123
6. Step 6: Final answer
   x = 907,131.28