Finding the Third Proportional to 1,009,872 and 2,191,413

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,872 : 2,191,413 = 2,191,413 : x
2. Step 2: Convert to fraction form
   1,009,872/2,191,413 = 2,191,413/x
3. Step 3: Cross multiply
   1,009,872x = 2,191,413 × 2,191,413
4. Step 4: Simplify right side
   1,009,872x = 4,802,290,936,569
5. Step 5: Solve for x
   x = 4,802,290,936,569/1,009,872
6. Step 6: Final answer
   x = 4,755,346.16