Finding the Third Proportional to 21,015 and 43,977.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,015 : 43,977.38 = 43,977.38 : x
2. Step 2: Convert to fraction form
   21,015/43,977.38 = 43,977.38/x
3. Step 3: Cross multiply
   21,015x = 43,977.38 × 43,977.38
4. Step 4: Simplify right side
   21,015x = 1,934,009,511.89
5. Step 5: Solve for x
   x = 1,934,009,511.89/21,015
6. Step 6: Final answer
   x = 92,029.96