Finding the Third Proportional to 21,152 and 43,648

Step by Step Solution

1. Step 1: Write the proportion equation
   21,152 : 43,648 = 43,648 : x
2. Step 2: Convert to fraction form
   21,152/43,648 = 43,648/x
3. Step 3: Cross multiply
   21,152x = 43,648 × 43,648
4. Step 4: Simplify right side
   21,152x = 1,905,147,904
5. Step 5: Solve for x
   x = 1,905,147,904/21,152
6. Step 6: Final answer
   x = 90,069.40