Finding the Third Proportional to 9,947.81 and 21,535.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.81 : 21,535.88 = 21,535.88 : x
2. Step 2: Convert to fraction form
   9,947.81/21,535.88 = 21,535.88/x
3. Step 3: Cross multiply
   9,947.81x = 21,535.88 × 21,535.88
4. Step 4: Simplify right side
   9,947.81x = 463,793,912.02
5. Step 5: Solve for x
   x = 463,793,912.02/9,947.81
6. Step 6: Final answer
   x = 46,622.70