Finding the Third Proportional to 613,558 and 1,256,858

Step by Step Solution

1. Step 1: Write the proportion equation
   613,558 : 1,256,858 = 1,256,858 : x
2. Step 2: Convert to fraction form
   613,558/1,256,858 = 1,256,858/x
3. Step 3: Cross multiply
   613,558x = 1,256,858 × 1,256,858
4. Step 4: Simplify right side
   613,558x = 1,579,692,032,164
5. Step 5: Solve for x
   x = 1,579,692,032,164/613,558
6. Step 6: Final answer
   x = 2,574,641.73