Finding the Third Proportional to 998,881 and 2,157,372

Step by Step Solution

1. Step 1: Write the proportion equation
   998,881 : 2,157,372 = 2,157,372 : x
2. Step 2: Convert to fraction form
   998,881/2,157,372 = 2,157,372/x
3. Step 3: Cross multiply
   998,881x = 2,157,372 × 2,157,372
4. Step 4: Simplify right side
   998,881x = 4,654,253,946,384
5. Step 5: Solve for x
   x = 4,654,253,946,384/998,881
6. Step 6: Final answer
   x = 4,659,467.89