Finding the Third Proportional to 10,040.63 and 21,210.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040.63 : 21,210.75 = 21,210.75 : x
2. Step 2: Convert to fraction form
   10,040.63/21,210.75 = 21,210.75/x
3. Step 3: Cross multiply
   10,040.63x = 21,210.75 × 21,210.75
4. Step 4: Simplify right side
   10,040.63x = 449,895,915.56
5. Step 5: Solve for x
   x = 449,895,915.56/10,040.63
6. Step 6: Final answer
   x = 44,807.56