Finding the Third Proportional to 21,018.13 and 43,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,018.13 : 43,983.50 = 43,983.50 : x
2. Step 2: Convert to fraction form
   21,018.13/43,983.50 = 43,983.50/x
3. Step 3: Cross multiply
   21,018.13x = 43,983.50 × 43,983.50
4. Step 4: Simplify right side
   21,018.13x = 1,934,548,272.25
5. Step 5: Solve for x
   x = 1,934,548,272.25/21,018.13
6. Step 6: Final answer
   x = 92,041.91