Finding the Third Proportional to 7,783 and 12,484

Step by Step Solution

1. Step 1: Write the proportion equation
   7,783 : 12,484 = 12,484 : x
2. Step 2: Convert to fraction form
   7,783/12,484 = 12,484/x
3. Step 3: Cross multiply
   7,783x = 12,484 × 12,484
4. Step 4: Simplify right side
   7,783x = 155,850,256
5. Step 5: Solve for x
   x = 155,850,256/7,783
6. Step 6: Final answer
   x = 20,024.45