Finding the Third Proportional to 105,176 and 215,260

Step by Step Solution

1. Step 1: Write the proportion equation
   105,176 : 215,260 = 215,260 : x
2. Step 2: Convert to fraction form
   105,176/215,260 = 215,260/x
3. Step 3: Cross multiply
   105,176x = 215,260 × 215,260
4. Step 4: Simplify right side
   105,176x = 46,336,867,600
5. Step 5: Solve for x
   x = 46,336,867,600/105,176
6. Step 6: Final answer
   x = 440,565.03