Finding the Third Proportional to 196,743.94 and 288,657

Step by Step Solution

1. Step 1: Write the proportion equation
   196,743.94 : 288,657 = 288,657 : x
2. Step 2: Convert to fraction form
   196,743.94/288,657 = 288,657/x
3. Step 3: Cross multiply
   196,743.94x = 288,657 × 288,657
4. Step 4: Simplify right side
   196,743.94x = 83,322,863,649
5. Step 5: Solve for x
   x = 83,322,863,649/196,743.94
6. Step 6: Final answer
   x = 423,509.18