Finding the Third Proportional to 10,254 and 21,219

Step by Step Solution

1. Step 1: Write the proportion equation
   10,254 : 21,219 = 21,219 : x
2. Step 2: Convert to fraction form
   10,254/21,219 = 21,219/x
3. Step 3: Cross multiply
   10,254x = 21,219 × 21,219
4. Step 4: Simplify right side
   10,254x = 450,245,961
5. Step 5: Solve for x
   x = 450,245,961/10,254
6. Step 6: Final answer
   x = 43,909.30