Finding the Third Proportional to 425,907 and 910,910.25

Step by Step Solution

1. Step 1: Write the proportion equation
   425,907 : 910,910.25 = 910,910.25 : x
2. Step 2: Convert to fraction form
   425,907/910,910.25 = 910,910.25/x
3. Step 3: Cross multiply
   425,907x = 910,910.25 × 910,910.25
4. Step 4: Simplify right side
   425,907x = 829,757,483,555.06
5. Step 5: Solve for x
   x = 829,757,483,555.06/425,907
6. Step 6: Final answer
   x = 1,948,212.83