Finding the Third Proportional to 1,002,722 and 2,188,372

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,722 : 2,188,372 = 2,188,372 : x
2. Step 2: Convert to fraction form
   1,002,722/2,188,372 = 2,188,372/x
3. Step 3: Cross multiply
   1,002,722x = 2,188,372 × 2,188,372
4. Step 4: Simplify right side
   1,002,722x = 4,788,972,010,384
5. Step 5: Solve for x
   x = 4,788,972,010,384/1,002,722
6. Step 6: Final answer
   x = 4,775,971.82