Finding the Third Proportional to 10,146.50 and 21,143

Step by Step Solution

1. Step 1: Write the proportion equation
   10,146.50 : 21,143 = 21,143 : x
2. Step 2: Convert to fraction form
   10,146.50/21,143 = 21,143/x
3. Step 3: Cross multiply
   10,146.50x = 21,143 × 21,143
4. Step 4: Simplify right side
   10,146.50x = 447,026,449
5. Step 5: Solve for x
   x = 447,026,449/10,146.50
6. Step 6: Final answer
   x = 44,057.21