Finding the Third Proportional to 9,931.50 and 21,303

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.50 : 21,303 = 21,303 : x
2. Step 2: Convert to fraction form
   9,931.50/21,303 = 21,303/x
3. Step 3: Cross multiply
   9,931.50x = 21,303 × 21,303
4. Step 4: Simplify right side
   9,931.50x = 453,817,809
5. Step 5: Solve for x
   x = 453,817,809/9,931.50
6. Step 6: Final answer
   x = 45,694.79