Finding the Third Proportional to 1,243,326 and 1,889,292

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,326 : 1,889,292 = 1,889,292 : x
2. Step 2: Convert to fraction form
   1,243,326/1,889,292 = 1,889,292/x
3. Step 3: Cross multiply
   1,243,326x = 1,889,292 × 1,889,292
4. Step 4: Simplify right side
   1,243,326x = 3,569,424,261,264
5. Step 5: Solve for x
   x = 3,569,424,261,264/1,243,326
6. Step 6: Final answer
   x = 2,870,867.55