Finding the Third Proportional to 105,619.88 and 234,854.38

Step by Step Solution

1. Step 1: Write the proportion equation
   105,619.88 : 234,854.38 = 234,854.38 : x
2. Step 2: Convert to fraction form
   105,619.88/234,854.38 = 234,854.38/x
3. Step 3: Cross multiply
   105,619.88x = 234,854.38 × 234,854.38
4. Step 4: Simplify right side
   105,619.88x = 55,156,577,456.64
5. Step 5: Solve for x
   x = 55,156,577,456.64/105,619.88
6. Step 6: Final answer
   x = 522,217.79