Finding the Third Proportional to 23,021.72 and 31,248.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,021.72 : 31,248.28 = 31,248.28 : x
2. Step 2: Convert to fraction form
   23,021.72/31,248.28 = 31,248.28/x
3. Step 3: Cross multiply
   23,021.72x = 31,248.28 × 31,248.28
4. Step 4: Simplify right side
   23,021.72x = 976,455,081.08
5. Step 5: Solve for x
   x = 976,455,081.08/23,021.72
6. Step 6: Final answer
   x = 42,414.52