Finding the Third Proportional to 1,200,342 and 1,858,020

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,342 : 1,858,020 = 1,858,020 : x
2. Step 2: Convert to fraction form
   1,200,342/1,858,020 = 1,858,020/x
3. Step 3: Cross multiply
   1,200,342x = 1,858,020 × 1,858,020
4. Step 4: Simplify right side
   1,200,342x = 3,452,238,320,400
5. Step 5: Solve for x
   x = 3,452,238,320,400/1,200,342
6. Step 6: Final answer
   x = 2,876,045.59