Finding the Third Proportional to 105,903 and 219,150

Step by Step Solution

1. Step 1: Write the proportion equation
   105,903 : 219,150 = 219,150 : x
2. Step 2: Convert to fraction form
   105,903/219,150 = 219,150/x
3. Step 3: Cross multiply
   105,903x = 219,150 × 219,150
4. Step 4: Simplify right side
   105,903x = 48,026,722,500
5. Step 5: Solve for x
   x = 48,026,722,500/105,903
6. Step 6: Final answer
   x = 453,497.28