Finding the Third Proportional to 10,472 and 21,088

Step by Step Solution

1. Step 1: Write the proportion equation
   10,472 : 21,088 = 21,088 : x
2. Step 2: Convert to fraction form
   10,472/21,088 = 21,088/x
3. Step 3: Cross multiply
   10,472x = 21,088 × 21,088
4. Step 4: Simplify right side
   10,472x = 444,703,744
5. Step 5: Solve for x
   x = 444,703,744/10,472
6. Step 6: Final answer
   x = 42,465.98