Finding the Third Proportional to 1,200,766 and 1,857,261

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,766 : 1,857,261 = 1,857,261 : x
2. Step 2: Convert to fraction form
   1,200,766/1,857,261 = 1,857,261/x
3. Step 3: Cross multiply
   1,200,766x = 1,857,261 × 1,857,261
4. Step 4: Simplify right side
   1,200,766x = 3,449,418,422,121
5. Step 5: Solve for x
   x = 3,449,418,422,121/1,200,766
6. Step 6: Final answer
   x = 2,872,681.62