Finding the Third Proportional to 404,424 and 602,743.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,424 : 602,743.50 = 602,743.50 : x
2. Step 2: Convert to fraction form
   404,424/602,743.50 = 602,743.50/x
3. Step 3: Cross multiply
   404,424x = 602,743.50 × 602,743.50
4. Step 4: Simplify right side
   404,424x = 363,299,726,792.25
5. Step 5: Solve for x
   x = 363,299,726,792.25/404,424
6. Step 6: Final answer
   x = 898,313.96