Finding the Third Proportional to 162,783 and 248,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,783 : 248,857.50 = 248,857.50 : x
2. Step 2: Convert to fraction form
   162,783/248,857.50 = 248,857.50/x
3. Step 3: Cross multiply
   162,783x = 248,857.50 × 248,857.50
4. Step 4: Simplify right side
   162,783x = 61,930,055,306.25
5. Step 5: Solve for x
   x = 61,930,055,306.25/162,783
6. Step 6: Final answer
   x = 380,445.47