Finding the Third Proportional to 1,231,326 and 1,781,730

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,326 : 1,781,730 = 1,781,730 : x
2. Step 2: Convert to fraction form
   1,231,326/1,781,730 = 1,781,730/x
3. Step 3: Cross multiply
   1,231,326x = 1,781,730 × 1,781,730
4. Step 4: Simplify right side
   1,231,326x = 3,174,561,792,900
5. Step 5: Solve for x
   x = 3,174,561,792,900/1,231,326
6. Step 6: Final answer
   x = 2,578,165.16