Finding the Third Proportional to 128,071 and 275,870

Step by Step Solution

1. Step 1: Write the proportion equation
   128,071 : 275,870 = 275,870 : x
2. Step 2: Convert to fraction form
   128,071/275,870 = 275,870/x
3. Step 3: Cross multiply
   128,071x = 275,870 × 275,870
4. Step 4: Simplify right side
   128,071x = 76,104,256,900
5. Step 5: Solve for x
   x = 76,104,256,900/128,071
6. Step 6: Final answer
   x = 594,234.89