Finding the Third Proportional to 111,860 and 248,584

Step by Step Solution

1. Step 1: Write the proportion equation
   111,860 : 248,584 = 248,584 : x
2. Step 2: Convert to fraction form
   111,860/248,584 = 248,584/x
3. Step 3: Cross multiply
   111,860x = 248,584 × 248,584
4. Step 4: Simplify right side
   111,860x = 61,794,005,056
5. Step 5: Solve for x
   x = 61,794,005,056/111,860
6. Step 6: Final answer
   x = 552,422.72