Finding the Third Proportional to 72,928 and 112,480

Step by Step Solution

1. Step 1: Write the proportion equation
   72,928 : 112,480 = 112,480 : x
2. Step 2: Convert to fraction form
   72,928/112,480 = 112,480/x
3. Step 3: Cross multiply
   72,928x = 112,480 × 112,480
4. Step 4: Simplify right side
   72,928x = 12,651,750,400
5. Step 5: Solve for x
   x = 12,651,750,400/72,928
6. Step 6: Final answer
   x = 173,482.76