Finding the Third Proportional to 1,242,284 and 1,864,743

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,284 : 1,864,743 = 1,864,743 : x
2. Step 2: Convert to fraction form
   1,242,284/1,864,743 = 1,864,743/x
3. Step 3: Cross multiply
   1,242,284x = 1,864,743 × 1,864,743
4. Step 4: Simplify right side
   1,242,284x = 3,477,266,456,049
5. Step 5: Solve for x
   x = 3,477,266,456,049/1,242,284
6. Step 6: Final answer
   x = 2,799,091.40