Finding the Third Proportional to 9,898 and 21,412

Step by Step Solution

1. Step 1: Write the proportion equation
   9,898 : 21,412 = 21,412 : x
2. Step 2: Convert to fraction form
   9,898/21,412 = 21,412/x
3. Step 3: Cross multiply
   9,898x = 21,412 × 21,412
4. Step 4: Simplify right side
   9,898x = 458,473,744
5. Step 5: Solve for x
   x = 458,473,744/9,898
6. Step 6: Final answer
   x = 46,319.84