Finding the Third Proportional to 998,896 and 2,157,402

Step by Step Solution

1. Step 1: Write the proportion equation
   998,896 : 2,157,402 = 2,157,402 : x
2. Step 2: Convert to fraction form
   998,896/2,157,402 = 2,157,402/x
3. Step 3: Cross multiply
   998,896x = 2,157,402 × 2,157,402
4. Step 4: Simplify right side
   998,896x = 4,654,383,389,604
5. Step 5: Solve for x
   x = 4,654,383,389,604/998,896
6. Step 6: Final answer
   x = 4,659,527.51