Finding the Third Proportional to 415,198.50 and 908,513.25

Step by Step Solution

1. Step 1: Write the proportion equation
   415,198.50 : 908,513.25 = 908,513.25 : x
2. Step 2: Convert to fraction form
   415,198.50/908,513.25 = 908,513.25/x
3. Step 3: Cross multiply
   415,198.50x = 908,513.25 × 908,513.25
4. Step 4: Simplify right side
   415,198.50x = 825,396,325,425.56
5. Step 5: Solve for x
   x = 825,396,325,425.56/415,198.50
6. Step 6: Final answer
   x = 1,987,955.94