Finding the Third Proportional to 305,241 and 654,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,241 : 654,769.50 = 654,769.50 : x
2. Step 2: Convert to fraction form
   305,241/654,769.50 = 654,769.50/x
3. Step 3: Cross multiply
   305,241x = 654,769.50 × 654,769.50
4. Step 4: Simplify right side
   305,241x = 428,723,098,130.25
5. Step 5: Solve for x
   x = 428,723,098,130.25/305,241
6. Step 6: Final answer
   x = 1,404,539.69