Finding the Third Proportional to 163,049.50 and 353,240

Step by Step Solution

1. Step 1: Write the proportion equation
   163,049.50 : 353,240 = 353,240 : x
2. Step 2: Convert to fraction form
   163,049.50/353,240 = 353,240/x
3. Step 3: Cross multiply
   163,049.50x = 353,240 × 353,240
4. Step 4: Simplify right side
   163,049.50x = 124,778,497,600
5. Step 5: Solve for x
   x = 124,778,497,600/163,049.50
6. Step 6: Final answer
   x = 765,279.85