Finding the Third Proportional to 168,354 and 341,406

Step by Step Solution

1. Step 1: Write the proportion equation
   168,354 : 341,406 = 341,406 : x
2. Step 2: Convert to fraction form
   168,354/341,406 = 341,406/x
3. Step 3: Cross multiply
   168,354x = 341,406 × 341,406
4. Step 4: Simplify right side
   168,354x = 116,558,056,836
5. Step 5: Solve for x
   x = 116,558,056,836/168,354
6. Step 6: Final answer
   x = 692,339.10