Finding the Third Proportional to 196,433 and 428,850

Step by Step Solution

1. Step 1: Write the proportion equation
   196,433 : 428,850 = 428,850 : x
2. Step 2: Convert to fraction form
   196,433/428,850 = 428,850/x
3. Step 3: Cross multiply
   196,433x = 428,850 × 428,850
4. Step 4: Simplify right side
   196,433x = 183,912,322,500
5. Step 5: Solve for x
   x = 183,912,322,500/196,433
6. Step 6: Final answer
   x = 936,259.81