Finding the Third Proportional to 141,920 and 334,480

Step by Step Solution

1. Step 1: Write the proportion equation
   141,920 : 334,480 = 334,480 : x
2. Step 2: Convert to fraction form
   141,920/334,480 = 334,480/x
3. Step 3: Cross multiply
   141,920x = 334,480 × 334,480
4. Step 4: Simplify right side
   141,920x = 111,876,870,400
5. Step 5: Solve for x
   x = 111,876,870,400/141,920
6. Step 6: Final answer
   x = 788,309.40