Finding the Third Proportional to 10,299.97 and 21,146.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,299.97 : 21,146.70 = 21,146.70 : x
2. Step 2: Convert to fraction form
   10,299.97/21,146.70 = 21,146.70/x
3. Step 3: Cross multiply
   10,299.97x = 21,146.70 × 21,146.70
4. Step 4: Simplify right side
   10,299.97x = 447,182,722.64
5. Step 5: Solve for x
   x = 447,182,722.64/10,299.97
6. Step 6: Final answer
   x = 43,415.91