Finding the Third Proportional to 111,902 and 248,668

Step by Step Solution

1. Step 1: Write the proportion equation
   111,902 : 248,668 = 248,668 : x
2. Step 2: Convert to fraction form
   111,902/248,668 = 248,668/x
3. Step 3: Cross multiply
   111,902x = 248,668 × 248,668
4. Step 4: Simplify right side
   111,902x = 61,835,774,224
5. Step 5: Solve for x
   x = 61,835,774,224/111,902
6. Step 6: Final answer
   x = 552,588.64