Finding the Third Proportional to 10,200 and 21,052

Step by Step Solution

1. Step 1: Write the proportion equation
   10,200 : 21,052 = 21,052 : x
2. Step 2: Convert to fraction form
   10,200/21,052 = 21,052/x
3. Step 3: Cross multiply
   10,200x = 21,052 × 21,052
4. Step 4: Simplify right side
   10,200x = 443,186,704
5. Step 5: Solve for x
   x = 443,186,704/10,200
6. Step 6: Final answer
   x = 43,449.68