Finding the Third Proportional to 821,994 and 1,801,128

Step by Step Solution

1. Step 1: Write the proportion equation
   821,994 : 1,801,128 = 1,801,128 : x
2. Step 2: Convert to fraction form
   821,994/1,801,128 = 1,801,128/x
3. Step 3: Cross multiply
   821,994x = 1,801,128 × 1,801,128
4. Step 4: Simplify right side
   821,994x = 3,244,062,072,384
5. Step 5: Solve for x
   x = 3,244,062,072,384/821,994
6. Step 6: Final answer
   x = 3,946,576.34