Finding the Third Proportional to 105,445 and 248,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,445 : 248,906.50 = 248,906.50 : x
2. Step 2: Convert to fraction form
   105,445/248,906.50 = 248,906.50/x
3. Step 3: Cross multiply
   105,445x = 248,906.50 × 248,906.50
4. Step 4: Simplify right side
   105,445x = 61,954,445,742.25
5. Step 5: Solve for x
   x = 61,954,445,742.25/105,445
6. Step 6: Final answer
   x = 587,552.24