Finding the Third Proportional to 910,656 and 1,998,459

Step by Step Solution

1. Step 1: Write the proportion equation
   910,656 : 1,998,459 = 1,998,459 : x
2. Step 2: Convert to fraction form
   910,656/1,998,459 = 1,998,459/x
3. Step 3: Cross multiply
   910,656x = 1,998,459 × 1,998,459
4. Step 4: Simplify right side
   910,656x = 3,993,838,374,681
5. Step 5: Solve for x
   x = 3,993,838,374,681/910,656
6. Step 6: Final answer
   x = 4,385,671.84