Finding the Third Proportional to 122,042 and 262,810

Step by Step Solution

1. Step 1: Write the proportion equation
   122,042 : 262,810 = 262,810 : x
2. Step 2: Convert to fraction form
   122,042/262,810 = 262,810/x
3. Step 3: Cross multiply
   122,042x = 262,810 × 262,810
4. Step 4: Simplify right side
   122,042x = 69,069,096,100
5. Step 5: Solve for x
   x = 69,069,096,100/122,042
6. Step 6: Final answer
   x = 565,945.30