Finding the Third Proportional to 613,588 and 1,345,256

Step by Step Solution

1. Step 1: Write the proportion equation
   613,588 : 1,345,256 = 1,345,256 : x
2. Step 2: Convert to fraction form
   613,588/1,345,256 = 1,345,256/x
3. Step 3: Cross multiply
   613,588x = 1,345,256 × 1,345,256
4. Step 4: Simplify right side
   613,588x = 1,809,713,705,536
5. Step 5: Solve for x
   x = 1,809,713,705,536/613,588
6. Step 6: Final answer
   x = 2,949,395.53