Finding the Third Proportional to 9,731.81 and 21,172.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,731.81 : 21,172.22 = 21,172.22 : x
2. Step 2: Convert to fraction form
   9,731.81/21,172.22 = 21,172.22/x
3. Step 3: Cross multiply
   9,731.81x = 21,172.22 × 21,172.22
4. Step 4: Simplify right side
   9,731.81x = 448,262,846.80
5. Step 5: Solve for x
   x = 448,262,846.80/9,731.81
6. Step 6: Final answer
   x = 46,061.60