Finding the Third Proportional to 122,607 and 264,579.75

Step by Step Solution

1. Step 1: Write the proportion equation
   122,607 : 264,579.75 = 264,579.75 : x
2. Step 2: Convert to fraction form
   122,607/264,579.75 = 264,579.75/x
3. Step 3: Cross multiply
   122,607x = 264,579.75 × 264,579.75
4. Step 4: Simplify right side
   122,607x = 70,002,444,110.06
5. Step 5: Solve for x
   x = 70,002,444,110.06/122,607
6. Step 6: Final answer
   x = 570,949.82