Finding the Third Proportional to 172,106 and 371,404

Step by Step Solution

1. Step 1: Write the proportion equation
   172,106 : 371,404 = 371,404 : x
2. Step 2: Convert to fraction form
   172,106/371,404 = 371,404/x
3. Step 3: Cross multiply
   172,106x = 371,404 × 371,404
4. Step 4: Simplify right side
   172,106x = 137,940,931,216
5. Step 5: Solve for x
   x = 137,940,931,216/172,106
6. Step 6: Final answer
   x = 801,488.22