Finding the Third Proportional to 122,604.75 and 262,705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,604.75 : 262,705.50 = 262,705.50 : x
2. Step 2: Convert to fraction form
   122,604.75/262,705.50 = 262,705.50/x
3. Step 3: Cross multiply
   122,604.75x = 262,705.50 × 262,705.50
4. Step 4: Simplify right side
   122,604.75x = 69,014,179,730.25
5. Step 5: Solve for x
   x = 69,014,179,730.25/122,604.75
6. Step 6: Final answer
   x = 562,899.72