Finding the Third Proportional to 248,103 and 338,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,103 : 338,620.50 = 338,620.50 : x
2. Step 2: Convert to fraction form
   248,103/338,620.50 = 338,620.50/x
3. Step 3: Cross multiply
   248,103x = 338,620.50 × 338,620.50
4. Step 4: Simplify right side
   248,103x = 114,663,843,020.25
5. Step 5: Solve for x
   x = 114,663,843,020.25/248,103
6. Step 6: Final answer
   x = 462,162.26