Finding the Third Proportional to 10,422.75 and 21,232.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.75 : 21,232.50 = 21,232.50 : x
2. Step 2: Convert to fraction form
   10,422.75/21,232.50 = 21,232.50/x
3. Step 3: Cross multiply
   10,422.75x = 21,232.50 × 21,232.50
4. Step 4: Simplify right side
   10,422.75x = 450,819,056.25
5. Step 5: Solve for x
   x = 450,819,056.25/10,422.75
6. Step 6: Final answer
   x = 43,253.37