Finding the Third Proportional to 21,290 and 46,310

Step by Step Solution

1. Step 1: Write the proportion equation
   21,290 : 46,310 = 46,310 : x
2. Step 2: Convert to fraction form
   21,290/46,310 = 46,310/x
3. Step 3: Cross multiply
   21,290x = 46,310 × 46,310
4. Step 4: Simplify right side
   21,290x = 2,144,616,100
5. Step 5: Solve for x
   x = 2,144,616,100/21,290
6. Step 6: Final answer
   x = 100,733.49