Finding the Third Proportional to 168,801 and 258,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,801 : 258,838.50 = 258,838.50 : x
2. Step 2: Convert to fraction form
   168,801/258,838.50 = 258,838.50/x
3. Step 3: Cross multiply
   168,801x = 258,838.50 × 258,838.50
4. Step 4: Simplify right side
   168,801x = 66,997,369,082.25
5. Step 5: Solve for x
   x = 66,997,369,082.25/168,801
6. Step 6: Final answer
   x = 396,901.49