Finding the Third Proportional to 21,018.19 and 43,983.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,018.19 : 43,983.75 = 43,983.75 : x
2. Step 2: Convert to fraction form
   21,018.19/43,983.75 = 43,983.75/x
3. Step 3: Cross multiply
   21,018.19x = 43,983.75 × 43,983.75
4. Step 4: Simplify right side
   21,018.19x = 1,934,570,264.06
5. Step 5: Solve for x
   x = 1,934,570,264.06/21,018.19
6. Step 6: Final answer
   x = 92,042.68