Finding the Third Proportional to 1,010,644 and 2,189,480

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,644 : 2,189,480 = 2,189,480 : x
2. Step 2: Convert to fraction form
   1,010,644/2,189,480 = 2,189,480/x
3. Step 3: Cross multiply
   1,010,644x = 2,189,480 × 2,189,480
4. Step 4: Simplify right side
   1,010,644x = 4,793,822,670,400
5. Step 5: Solve for x
   x = 4,793,822,670,400/1,010,644
6. Step 6: Final answer
   x = 4,743,334.62