Finding the Third Proportional to 10,530 and 21,363.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,530 : 21,363.75 = 21,363.75 : x
2. Step 2: Convert to fraction form
   10,530/21,363.75 = 21,363.75/x
3. Step 3: Cross multiply
   10,530x = 21,363.75 × 21,363.75
4. Step 4: Simplify right side
   10,530x = 456,409,814.06
5. Step 5: Solve for x
   x = 456,409,814.06/10,530
6. Step 6: Final answer
   x = 43,343.76