Finding the Third Proportional to 105,544.47 and 215,392.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,544.47 : 215,392.06 = 215,392.06 : x
2. Step 2: Convert to fraction form
   105,544.47/215,392.06 = 215,392.06/x
3. Step 3: Cross multiply
   105,544.47x = 215,392.06 × 215,392.06
4. Step 4: Simplify right side
   105,544.47x = 46,393,740,588.00
5. Step 5: Solve for x
   x = 46,393,740,588.00/105,544.47
6. Step 6: Final answer
   x = 439,565.82