Finding the Third Proportional to 1,233,856 and 1,680,918

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233,856 : 1,680,918 = 1,680,918 : x
2. Step 2: Convert to fraction form
   1,233,856/1,680,918 = 1,680,918/x
3. Step 3: Cross multiply
   1,233,856x = 1,680,918 × 1,680,918
4. Step 4: Simplify right side
   1,233,856x = 2,825,485,322,724
5. Step 5: Solve for x
   x = 2,825,485,322,724/1,233,856
6. Step 6: Final answer
   x = 2,289,963.60