Finding the Third Proportional to 9,808 and 21,088

Step by Step Solution

1. Step 1: Write the proportion equation
   9,808 : 21,088 = 21,088 : x
2. Step 2: Convert to fraction form
   9,808/21,088 = 21,088/x
3. Step 3: Cross multiply
   9,808x = 21,088 × 21,088
4. Step 4: Simplify right side
   9,808x = 444,703,744
5. Step 5: Solve for x
   x = 444,703,744/9,808
6. Step 6: Final answer
   x = 45,340.92