Finding the Third Proportional to 196,123 and 423,350

Step by Step Solution

1. Step 1: Write the proportion equation
   196,123 : 423,350 = 423,350 : x
2. Step 2: Convert to fraction form
   196,123/423,350 = 423,350/x
3. Step 3: Cross multiply
   196,123x = 423,350 × 423,350
4. Step 4: Simplify right side
   196,123x = 179,225,222,500
5. Step 5: Solve for x
   x = 179,225,222,500/196,123
6. Step 6: Final answer
   x = 913,840.92