Finding the Third Proportional to 1,200,258 and 1,857,249

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,258 : 1,857,249 = 1,857,249 : x
2. Step 2: Convert to fraction form
   1,200,258/1,857,249 = 1,857,249/x
3. Step 3: Cross multiply
   1,200,258x = 1,857,249 × 1,857,249
4. Step 4: Simplify right side
   1,200,258x = 3,449,373,848,001
5. Step 5: Solve for x
   x = 3,449,373,848,001/1,200,258
6. Step 6: Final answer
   x = 2,873,860.33