Finding the Third Proportional to 162,783 and 334,323

Step by Step Solution

1. Step 1: Write the proportion equation
   162,783 : 334,323 = 334,323 : x
2. Step 2: Convert to fraction form
   162,783/334,323 = 334,323/x
3. Step 3: Cross multiply
   162,783x = 334,323 × 334,323
4. Step 4: Simplify right side
   162,783x = 111,771,868,329
5. Step 5: Solve for x
   x = 111,771,868,329/162,783
6. Step 6: Final answer
   x = 686,631.09