Finding the Third Proportional to 111,901 and 248,666

Step by Step Solution

1. Step 1: Write the proportion equation
   111,901 : 248,666 = 248,666 : x
2. Step 2: Convert to fraction form
   111,901/248,666 = 248,666/x
3. Step 3: Cross multiply
   111,901x = 248,666 × 248,666
4. Step 4: Simplify right side
   111,901x = 61,834,779,556
5. Step 5: Solve for x
   x = 61,834,779,556/111,901
6. Step 6: Final answer
   x = 552,584.69