Finding the Third Proportional to 1,096,146 and 1,638,684

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096,146 : 1,638,684 = 1,638,684 : x
2. Step 2: Convert to fraction form
   1,096,146/1,638,684 = 1,638,684/x
3. Step 3: Cross multiply
   1,096,146x = 1,638,684 × 1,638,684
4. Step 4: Simplify right side
   1,096,146x = 2,685,285,251,856
5. Step 5: Solve for x
   x = 2,685,285,251,856/1,096,146
6. Step 6: Final answer
   x = 2,449,751.45