Finding the Third Proportional to 103,444 and 213,360

Step by Step Solution

1. Step 1: Write the proportion equation
   103,444 : 213,360 = 213,360 : x
2. Step 2: Convert to fraction form
   103,444/213,360 = 213,360/x
3. Step 3: Cross multiply
   103,444x = 213,360 × 213,360
4. Step 4: Simplify right side
   103,444x = 45,522,489,600
5. Step 5: Solve for x
   x = 45,522,489,600/103,444
6. Step 6: Final answer
   x = 440,068.92