Finding the Third Proportional to 100,636.50 and 215,367

Step by Step Solution

1. Step 1: Write the proportion equation
   100,636.50 : 215,367 = 215,367 : x
2. Step 2: Convert to fraction form
   100,636.50/215,367 = 215,367/x
3. Step 3: Cross multiply
   100,636.50x = 215,367 × 215,367
4. Step 4: Simplify right side
   100,636.50x = 46,382,944,689
5. Step 5: Solve for x
   x = 46,382,944,689/100,636.50
6. Step 6: Final answer
   x = 460,895.84