Finding the Third Proportional to 168,500 and 263,118

Step by Step Solution

1. Step 1: Write the proportion equation
   168,500 : 263,118 = 263,118 : x
2. Step 2: Convert to fraction form
   168,500/263,118 = 263,118/x
3. Step 3: Cross multiply
   168,500x = 263,118 × 263,118
4. Step 4: Simplify right side
   168,500x = 69,231,081,924
5. Step 5: Solve for x
   x = 69,231,081,924/168,500
6. Step 6: Final answer
   x = 410,866.96