Finding the Third Proportional to 1,010,669 and 2,189,403

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,669 : 2,189,403 = 2,189,403 : x
2. Step 2: Convert to fraction form
   1,010,669/2,189,403 = 2,189,403/x
3. Step 3: Cross multiply
   1,010,669x = 2,189,403 × 2,189,403
4. Step 4: Simplify right side
   1,010,669x = 4,793,485,496,409
5. Step 5: Solve for x
   x = 4,793,485,496,409/1,010,669
6. Step 6: Final answer
   x = 4,742,883.67