Finding the Third Proportional to 51,030 and 108,128

Step by Step Solution

1. Step 1: Write the proportion equation
   51,030 : 108,128 = 108,128 : x
2. Step 2: Convert to fraction form
   51,030/108,128 = 108,128/x
3. Step 3: Cross multiply
   51,030x = 108,128 × 108,128
4. Step 4: Simplify right side
   51,030x = 11,691,664,384
5. Step 5: Solve for x
   x = 11,691,664,384/51,030
6. Step 6: Final answer
   x = 229,113.55