Finding the Third Proportional to 179,947.69 and 393,793.31

Step by Step Solution

1. Step 1: Write the proportion equation
   179,947.69 : 393,793.31 = 393,793.31 : x
2. Step 2: Convert to fraction form
   179,947.69/393,793.31 = 393,793.31/x
3. Step 3: Cross multiply
   179,947.69x = 393,793.31 × 393,793.31
4. Step 4: Simplify right side
   179,947.69x = 155,073,172,969.72
5. Step 5: Solve for x
   x = 155,073,172,969.72/179,947.69
6. Step 6: Final answer
   x = 861,768.08