Finding the Third Proportional to 21,186 and 45,111

Step by Step Solution

1. Step 1: Write the proportion equation
   21,186 : 45,111 = 45,111 : x
2. Step 2: Convert to fraction form
   21,186/45,111 = 45,111/x
3. Step 3: Cross multiply
   21,186x = 45,111 × 45,111
4. Step 4: Simplify right side
   21,186x = 2,035,002,321
5. Step 5: Solve for x
   x = 2,035,002,321/21,186
6. Step 6: Final answer
   x = 96,054.11