Finding the Third Proportional to 21,427 and 31,303

Step by Step Solution

1. Step 1: Write the proportion equation
   21,427 : 31,303 = 31,303 : x
2. Step 2: Convert to fraction form
   21,427/31,303 = 31,303/x
3. Step 3: Cross multiply
   21,427x = 31,303 × 31,303
4. Step 4: Simplify right side
   21,427x = 979,877,809
5. Step 5: Solve for x
   x = 979,877,809/21,427
6. Step 6: Final answer
   x = 45,730.98