Finding the Third Proportional to 1,109,812 and 1,661,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,812 : 1,661,680 = 1,661,680 : x
2. Step 2: Convert to fraction form
   1,109,812/1,661,680 = 1,661,680/x
3. Step 3: Cross multiply
   1,109,812x = 1,661,680 × 1,661,680
4. Step 4: Simplify right side
   1,109,812x = 2,761,180,422,400
5. Step 5: Solve for x
   x = 2,761,180,422,400/1,109,812
6. Step 6: Final answer
   x = 2,487,971.32