Finding the Third Proportional to 21,154 and 43,588

Step by Step Solution

1. Step 1: Write the proportion equation
   21,154 : 43,588 = 43,588 : x
2. Step 2: Convert to fraction form
   21,154/43,588 = 43,588/x
3. Step 3: Cross multiply
   21,154x = 43,588 × 43,588
4. Step 4: Simplify right side
   21,154x = 1,899,913,744
5. Step 5: Solve for x
   x = 1,899,913,744/21,154
6. Step 6: Final answer
   x = 89,813.45