Finding the Third Proportional to 172,396 and 371,036

Step by Step Solution

1. Step 1: Write the proportion equation
   172,396 : 371,036 = 371,036 : x
2. Step 2: Convert to fraction form
   172,396/371,036 = 371,036/x
3. Step 3: Cross multiply
   172,396x = 371,036 × 371,036
4. Step 4: Simplify right side
   172,396x = 137,667,713,296
5. Step 5: Solve for x
   x = 137,667,713,296/172,396
6. Step 6: Final answer
   x = 798,555.15