Finding the Third Proportional to 196,441.50 and 428,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,441.50 : 428,866.50 = 428,866.50 : x
2. Step 2: Convert to fraction form
   196,441.50/428,866.50 = 428,866.50/x
3. Step 3: Cross multiply
   196,441.50x = 428,866.50 × 428,866.50
4. Step 4: Simplify right side
   196,441.50x = 183,926,474,822.25
5. Step 5: Solve for x
   x = 183,926,474,822.25/196,441.50
6. Step 6: Final answer
   x = 936,291.34