Finding the Third Proportional to 344,477.25 and 489,924

Step by Step Solution

1. Step 1: Write the proportion equation
   344,477.25 : 489,924 = 489,924 : x
2. Step 2: Convert to fraction form
   344,477.25/489,924 = 489,924/x
3. Step 3: Cross multiply
   344,477.25x = 489,924 × 489,924
4. Step 4: Simplify right side
   344,477.25x = 240,025,525,776
5. Step 5: Solve for x
   x = 240,025,525,776/344,477.25
6. Step 6: Final answer
   x = 696,781.94