Finding the Third Proportional to 855,790 and 1,196,387

Step by Step Solution

1. Step 1: Write the proportion equation
   855,790 : 1,196,387 = 1,196,387 : x
2. Step 2: Convert to fraction form
   855,790/1,196,387 = 1,196,387/x
3. Step 3: Cross multiply
   855,790x = 1,196,387 × 1,196,387
4. Step 4: Simplify right side
   855,790x = 1,431,341,853,769
5. Step 5: Solve for x
   x = 1,431,341,853,769/855,790
6. Step 6: Final answer
   x = 1,672,538.65