Finding the Third Proportional to 1,243,885 and 2,613,118

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,885 : 2,613,118 = 2,613,118 : x
2. Step 2: Convert to fraction form
   1,243,885/2,613,118 = 2,613,118/x
3. Step 3: Cross multiply
   1,243,885x = 2,613,118 × 2,613,118
4. Step 4: Simplify right side
   1,243,885x = 6,828,385,681,924
5. Step 5: Solve for x
   x = 6,828,385,681,924/1,243,885
6. Step 6: Final answer
   x = 5,489,563.49