Finding the Third Proportional to 105,480 and 248,994

Step by Step Solution

1. Step 1: Write the proportion equation
   105,480 : 248,994 = 248,994 : x
2. Step 2: Convert to fraction form
   105,480/248,994 = 248,994/x
3. Step 3: Cross multiply
   105,480x = 248,994 × 248,994
4. Step 4: Simplify right side
   105,480x = 61,998,012,036
5. Step 5: Solve for x
   x = 61,998,012,036/105,480
6. Step 6: Final answer
   x = 587,770.31