Finding the Third Proportional to 855,387 and 1,837,134

Step by Step Solution

1. Step 1: Write the proportion equation
   855,387 : 1,837,134 = 1,837,134 : x
2. Step 2: Convert to fraction form
   855,387/1,837,134 = 1,837,134/x
3. Step 3: Cross multiply
   855,387x = 1,837,134 × 1,837,134
4. Step 4: Simplify right side
   855,387x = 3,375,061,333,956
5. Step 5: Solve for x
   x = 3,375,061,333,956/855,387
6. Step 6: Final answer
   x = 3,945,654.23