Finding the Third Proportional to 171,344 and 371,290

Step by Step Solution

1. Step 1: Write the proportion equation
   171,344 : 371,290 = 371,290 : x
2. Step 2: Convert to fraction form
   171,344/371,290 = 371,290/x
3. Step 3: Cross multiply
   171,344x = 371,290 × 371,290
4. Step 4: Simplify right side
   171,344x = 137,856,264,100
5. Step 5: Solve for x
   x = 137,856,264,100/171,344
6. Step 6: Final answer
   x = 804,558.46