Finding the Third Proportional to 105,534.75 and 215,367

Step by Step Solution

1. Step 1: Write the proportion equation
   105,534.75 : 215,367 = 215,367 : x
2. Step 2: Convert to fraction form
   105,534.75/215,367 = 215,367/x
3. Step 3: Cross multiply
   105,534.75x = 215,367 × 215,367
4. Step 4: Simplify right side
   105,534.75x = 46,382,944,689
5. Step 5: Solve for x
   x = 46,382,944,689/105,534.75
6. Step 6: Final answer
   x = 439,504.00