Finding the Third Proportional to 158,124 and 342,480

Step by Step Solution

1. Step 1: Write the proportion equation
   158,124 : 342,480 = 342,480 : x
2. Step 2: Convert to fraction form
   158,124/342,480 = 342,480/x
3. Step 3: Cross multiply
   158,124x = 342,480 × 342,480
4. Step 4: Simplify right side
   158,124x = 117,292,550,400
5. Step 5: Solve for x
   x = 117,292,550,400/158,124
6. Step 6: Final answer
   x = 741,775.76