Finding the Third Proportional to 122,158 and 174,360

Step by Step Solution

1. Step 1: Write the proportion equation
   122,158 : 174,360 = 174,360 : x
2. Step 2: Convert to fraction form
   122,158/174,360 = 174,360/x
3. Step 3: Cross multiply
   122,158x = 174,360 × 174,360
4. Step 4: Simplify right side
   122,158x = 30,401,409,600
5. Step 5: Solve for x
   x = 30,401,409,600/122,158
6. Step 6: Final answer
   x = 248,869.58