Finding the Third Proportional to 21,035 and 43,123

Step by Step Solution

1. Step 1: Write the proportion equation
   21,035 : 43,123 = 43,123 : x
2. Step 2: Convert to fraction form
   21,035/43,123 = 43,123/x
3. Step 3: Cross multiply
   21,035x = 43,123 × 43,123
4. Step 4: Simplify right side
   21,035x = 1,859,593,129
5. Step 5: Solve for x
   x = 1,859,593,129/21,035
6. Step 6: Final answer
   x = 88,404.71