Finding the Third Proportional to 122,142 and 269,131

Step by Step Solution

1. Step 1: Write the proportion equation
   122,142 : 269,131 = 269,131 : x
2. Step 2: Convert to fraction form
   122,142/269,131 = 269,131/x
3. Step 3: Cross multiply
   122,142x = 269,131 × 269,131
4. Step 4: Simplify right side
   122,142x = 72,431,495,161
5. Step 5: Solve for x
   x = 72,431,495,161/122,142
6. Step 6: Final answer
   x = 593,010.55