Finding the Third Proportional to 21,528.84 and 31,442.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,528.84 : 31,442.72 = 31,442.72 : x
2. Step 2: Convert to fraction form
   21,528.84/31,442.72 = 31,442.72/x
3. Step 3: Cross multiply
   21,528.84x = 31,442.72 × 31,442.72
4. Step 4: Simplify right side
   21,528.84x = 988,644,562.39
5. Step 5: Solve for x
   x = 988,644,562.39/21,528.84
6. Step 6: Final answer
   x = 45,921.86