Finding the Third Proportional to 196,559.25 and 426,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,559.25 : 426,490.50 = 426,490.50 : x
2. Step 2: Convert to fraction form
   196,559.25/426,490.50 = 426,490.50/x
3. Step 3: Cross multiply
   196,559.25x = 426,490.50 × 426,490.50
4. Step 4: Simplify right side
   196,559.25x = 181,894,146,590.25
5. Step 5: Solve for x
   x = 181,894,146,590.25/196,559.25
6. Step 6: Final answer
   x = 925,390.93