Finding the Third Proportional to 21,506 and 43,876

Step by Step Solution

1. Step 1: Write the proportion equation
   21,506 : 43,876 = 43,876 : x
2. Step 2: Convert to fraction form
   21,506/43,876 = 43,876/x
3. Step 3: Cross multiply
   21,506x = 43,876 × 43,876
4. Step 4: Simplify right side
   21,506x = 1,925,103,376
5. Step 5: Solve for x
   x = 1,925,103,376/21,506
6. Step 6: Final answer
   x = 89,514.71