Finding the Third Proportional to 1,109,907 and 1,671,421

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,907 : 1,671,421 = 1,671,421 : x
2. Step 2: Convert to fraction form
   1,109,907/1,671,421 = 1,671,421/x
3. Step 3: Cross multiply
   1,109,907x = 1,671,421 × 1,671,421
4. Step 4: Simplify right side
   1,109,907x = 2,793,648,159,241
5. Step 5: Solve for x
   x = 2,793,648,159,241/1,109,907
6. Step 6: Final answer
   x = 2,517,011.03