Finding the Third Proportional to 21,343.27 and 31,236.43

Step by Step Solution

1. Step 1: Write the proportion equation
   21,343.27 : 31,236.43 = 31,236.43 : x
2. Step 2: Convert to fraction form
   21,343.27/31,236.43 = 31,236.43/x
3. Step 3: Cross multiply
   21,343.27x = 31,236.43 × 31,236.43
4. Step 4: Simplify right side
   21,343.27x = 975,714,612.07
5. Step 5: Solve for x
   x = 975,714,612.07/21,343.27
6. Step 6: Final answer
   x = 45,715.32