Finding the Third Proportional to 1,189,840 and 1,812,644

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,840 : 1,812,644 = 1,812,644 : x
2. Step 2: Convert to fraction form
   1,189,840/1,812,644 = 1,812,644/x
3. Step 3: Cross multiply
   1,189,840x = 1,812,644 × 1,812,644
4. Step 4: Simplify right side
   1,189,840x = 3,285,678,270,736
5. Step 5: Solve for x
   x = 3,285,678,270,736/1,189,840
6. Step 6: Final answer
   x = 2,761,445.46