Finding the Third Proportional to 1,200,340 and 1,858,021

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,340 : 1,858,021 = 1,858,021 : x
2. Step 2: Convert to fraction form
   1,200,340/1,858,021 = 1,858,021/x
3. Step 3: Cross multiply
   1,200,340x = 1,858,021 × 1,858,021
4. Step 4: Simplify right side
   1,200,340x = 3,452,242,036,441
5. Step 5: Solve for x
   x = 3,452,242,036,441/1,200,340
6. Step 6: Final answer
   x = 2,876,053.48