Finding the Third Proportional to 16,430 and 22,485

Step by Step Solution

1. Step 1: Write the proportion equation
   16,430 : 22,485 = 22,485 : x
2. Step 2: Convert to fraction form
   16,430/22,485 = 22,485/x
3. Step 3: Cross multiply
   16,430x = 22,485 × 22,485
4. Step 4: Simplify right side
   16,430x = 505,575,225
5. Step 5: Solve for x
   x = 505,575,225/16,430
6. Step 6: Final answer
   x = 30,771.47