Finding the Third Proportional to 1,189,864 and 1,812,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,864 : 1,812,680 = 1,812,680 : x
2. Step 2: Convert to fraction form
   1,189,864/1,812,680 = 1,812,680/x
3. Step 3: Cross multiply
   1,189,864x = 1,812,680 × 1,812,680
4. Step 4: Simplify right side
   1,189,864x = 3,285,808,782,400
5. Step 5: Solve for x
   x = 3,285,808,782,400/1,189,864
6. Step 6: Final answer
   x = 2,761,499.45