Finding the Third Proportional to 12,628 and 19,810

Step by Step Solution

1. Step 1: Write the proportion equation
   12,628 : 19,810 = 19,810 : x
2. Step 2: Convert to fraction form
   12,628/19,810 = 19,810/x
3. Step 3: Cross multiply
   12,628x = 19,810 × 19,810
4. Step 4: Simplify right side
   12,628x = 392,436,100
5. Step 5: Solve for x
   x = 392,436,100/12,628
6. Step 6: Final answer
   x = 31,076.66