Finding the Third Proportional to 10,023.75 and 21,390.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,023.75 : 21,390.17 = 21,390.17 : x
2. Step 2: Convert to fraction form
   10,023.75/21,390.17 = 21,390.17/x
3. Step 3: Cross multiply
   10,023.75x = 21,390.17 × 21,390.17
4. Step 4: Simplify right side
   10,023.75x = 457,539,369.29
5. Step 5: Solve for x
   x = 457,539,369.29/10,023.75
6. Step 6: Final answer
   x = 45,645.53