Finding the Third Proportional to 911,654 and 1,998,254

Step by Step Solution

1. Step 1: Write the proportion equation
   911,654 : 1,998,254 = 1,998,254 : x
2. Step 2: Convert to fraction form
   911,654/1,998,254 = 1,998,254/x
3. Step 3: Cross multiply
   911,654x = 1,998,254 × 1,998,254
4. Step 4: Simplify right side
   911,654x = 3,993,019,048,516
5. Step 5: Solve for x
   x = 3,993,019,048,516/911,654
6. Step 6: Final answer
   x = 4,379,972.06