Finding the Third Proportional to 1,201,241 and 1,617,991

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201,241 : 1,617,991 = 1,617,991 : x
2. Step 2: Convert to fraction form
   1,201,241/1,617,991 = 1,617,991/x
3. Step 3: Cross multiply
   1,201,241x = 1,617,991 × 1,617,991
4. Step 4: Simplify right side
   1,201,241x = 2,617,894,876,081
5. Step 5: Solve for x
   x = 2,617,894,876,081/1,201,241
6. Step 6: Final answer
   x = 2,179,325.28