Finding the Third Proportional to 818,090 and 1,910,722

Step by Step Solution

1. Step 1: Write the proportion equation
   818,090 : 1,910,722 = 1,910,722 : x
2. Step 2: Convert to fraction form
   818,090/1,910,722 = 1,910,722/x
3. Step 3: Cross multiply
   818,090x = 1,910,722 × 1,910,722
4. Step 4: Simplify right side
   818,090x = 3,650,858,561,284
5. Step 5: Solve for x
   x = 3,650,858,561,284/818,090
6. Step 6: Final answer
   x = 4,462,661.27