Finding the Third Proportional to 578,586 and 1,185,360

Step by Step Solution

1. Step 1: Write the proportion equation
   578,586 : 1,185,360 = 1,185,360 : x
2. Step 2: Convert to fraction form
   578,586/1,185,360 = 1,185,360/x
3. Step 3: Cross multiply
   578,586x = 1,185,360 × 1,185,360
4. Step 4: Simplify right side
   578,586x = 1,405,078,329,600
5. Step 5: Solve for x
   x = 1,405,078,329,600/578,586
6. Step 6: Final answer
   x = 2,428,469.28