Finding the Third Proportional to 9,945.50 and 21,447.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.50 : 21,447.88 = 21,447.88 : x
2. Step 2: Convert to fraction form
   9,945.50/21,447.88 = 21,447.88/x
3. Step 3: Cross multiply
   9,945.50x = 21,447.88 × 21,447.88
4. Step 4: Simplify right side
   9,945.50x = 460,011,342.02
5. Step 5: Solve for x
   x = 460,011,342.02/9,945.50
6. Step 6: Final answer
   x = 46,253.21