Finding the Third Proportional to 21,185 and 45,109

Step by Step Solution

1. Step 1: Write the proportion equation
   21,185 : 45,109 = 45,109 : x
2. Step 2: Convert to fraction form
   21,185/45,109 = 45,109/x
3. Step 3: Cross multiply
   21,185x = 45,109 × 45,109
4. Step 4: Simplify right side
   21,185x = 2,034,821,881
5. Step 5: Solve for x
   x = 2,034,821,881/21,185
6. Step 6: Final answer
   x = 96,050.12