Finding the Third Proportional to 1,189,920 and 1,812,771

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,920 : 1,812,771 = 1,812,771 : x
2. Step 2: Convert to fraction form
   1,189,920/1,812,771 = 1,812,771/x
3. Step 3: Cross multiply
   1,189,920x = 1,812,771 × 1,812,771
4. Step 4: Simplify right side
   1,189,920x = 3,286,138,698,441
5. Step 5: Solve for x
   x = 3,286,138,698,441/1,189,920
6. Step 6: Final answer
   x = 2,761,646.75