Finding the Third Proportional to 162,409.50 and 354,303

Step by Step Solution

1. Step 1: Write the proportion equation
   162,409.50 : 354,303 = 354,303 : x
2. Step 2: Convert to fraction form
   162,409.50/354,303 = 354,303/x
3. Step 3: Cross multiply
   162,409.50x = 354,303 × 354,303
4. Step 4: Simplify right side
   162,409.50x = 125,530,615,809
5. Step 5: Solve for x
   x = 125,530,615,809/162,409.50
6. Step 6: Final answer
   x = 772,926.56