Finding the Third Proportional to 425,978 and 908,786

Step by Step Solution

1. Step 1: Write the proportion equation
   425,978 : 908,786 = 908,786 : x
2. Step 2: Convert to fraction form
   425,978/908,786 = 908,786/x
3. Step 3: Cross multiply
   425,978x = 908,786 × 908,786
4. Step 4: Simplify right side
   425,978x = 825,891,993,796
5. Step 5: Solve for x
   x = 825,891,993,796/425,978
6. Step 6: Final answer
   x = 1,938,813.73