Finding the Third Proportional to 17,005.78 and 22,378.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,005.78 : 22,378.78 = 22,378.78 : x
2. Step 2: Convert to fraction form
   17,005.78/22,378.78 = 22,378.78/x
3. Step 3: Cross multiply
   17,005.78x = 22,378.78 × 22,378.78
4. Step 4: Simplify right side
   17,005.78x = 500,809,850.24
5. Step 5: Solve for x
   x = 500,809,850.24/17,005.78
6. Step 6: Final answer
   x = 29,449.39