Finding the Third Proportional to 172,019.25 and 265,698

Step by Step Solution

1. Step 1: Write the proportion equation
   172,019.25 : 265,698 = 265,698 : x
2. Step 2: Convert to fraction form
   172,019.25/265,698 = 265,698/x
3. Step 3: Cross multiply
   172,019.25x = 265,698 × 265,698
4. Step 4: Simplify right side
   172,019.25x = 70,595,427,204
5. Step 5: Solve for x
   x = 70,595,427,204/172,019.25
6. Step 6: Final answer
   x = 410,392.60