Finding the Third Proportional to 172,150 and 265,908

Step by Step Solution

1. Step 1: Write the proportion equation
   172,150 : 265,908 = 265,908 : x
2. Step 2: Convert to fraction form
   172,150/265,908 = 265,908/x
3. Step 3: Cross multiply
   172,150x = 265,908 × 265,908
4. Step 4: Simplify right side
   172,150x = 70,707,064,464
5. Step 5: Solve for x
   x = 70,707,064,464/172,150
6. Step 6: Final answer
   x = 410,729.39