Finding the Third Proportional to 111,170 and 243,422

Step by Step Solution

1. Step 1: Write the proportion equation
   111,170 : 243,422 = 243,422 : x
2. Step 2: Convert to fraction form
   111,170/243,422 = 243,422/x
3. Step 3: Cross multiply
   111,170x = 243,422 × 243,422
4. Step 4: Simplify right side
   111,170x = 59,254,270,084
5. Step 5: Solve for x
   x = 59,254,270,084/111,170
6. Step 6: Final answer
   x = 533,005.94