Finding the Third Proportional to 105,398.50 and 248,799

Step by Step Solution

1. Step 1: Write the proportion equation
   105,398.50 : 248,799 = 248,799 : x
2. Step 2: Convert to fraction form
   105,398.50/248,799 = 248,799/x
3. Step 3: Cross multiply
   105,398.50x = 248,799 × 248,799
4. Step 4: Simplify right side
   105,398.50x = 61,900,942,401
5. Step 5: Solve for x
   x = 61,900,942,401/105,398.50
6. Step 6: Final answer
   x = 587,303.83