Finding the Third Proportional to 1,189,859 and 1,812,671

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,859 : 1,812,671 = 1,812,671 : x
2. Step 2: Convert to fraction form
   1,189,859/1,812,671 = 1,812,671/x
3. Step 3: Cross multiply
   1,189,859x = 1,812,671 × 1,812,671
4. Step 4: Simplify right side
   1,189,859x = 3,285,776,154,241
5. Step 5: Solve for x
   x = 3,285,776,154,241/1,189,859
6. Step 6: Final answer
   x = 2,761,483.63