Finding the Third Proportional to 10,508.63 and 21,908.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,508.63 : 21,908.25 = 21,908.25 : x
2. Step 2: Convert to fraction form
   10,508.63/21,908.25 = 21,908.25/x
3. Step 3: Cross multiply
   10,508.63x = 21,908.25 × 21,908.25
4. Step 4: Simplify right side
   10,508.63x = 479,971,418.06
5. Step 5: Solve for x
   x = 479,971,418.06/10,508.63
6. Step 6: Final answer
   x = 45,674.05