Finding the Third Proportional to 21,132 and 43,224

Step by Step Solution

1. Step 1: Write the proportion equation
   21,132 : 43,224 = 43,224 : x
2. Step 2: Convert to fraction form
   21,132/43,224 = 43,224/x
3. Step 3: Cross multiply
   21,132x = 43,224 × 43,224
4. Step 4: Simplify right side
   21,132x = 1,868,314,176
5. Step 5: Solve for x
   x = 1,868,314,176/21,132
6. Step 6: Final answer
   x = 88,411.61