Finding the Third Proportional to 1,009,858 and 2,177,180

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,858 : 2,177,180 = 2,177,180 : x
2. Step 2: Convert to fraction form
   1,009,858/2,177,180 = 2,177,180/x
3. Step 3: Cross multiply
   1,009,858x = 2,177,180 × 2,177,180
4. Step 4: Simplify right side
   1,009,858x = 4,740,112,752,400
5. Step 5: Solve for x
   x = 4,740,112,752,400/1,009,858
6. Step 6: Final answer
   x = 4,693,840.87