Finding the Third Proportional to 21,228 and 46,290

Step by Step Solution

1. Step 1: Write the proportion equation
   21,228 : 46,290 = 46,290 : x
2. Step 2: Convert to fraction form
   21,228/46,290 = 46,290/x
3. Step 3: Cross multiply
   21,228x = 46,290 × 46,290
4. Step 4: Simplify right side
   21,228x = 2,142,764,100
5. Step 5: Solve for x
   x = 2,142,764,100/21,228
6. Step 6: Final answer
   x = 100,940.46