Finding the Third Proportional to 393,189 and 597,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   393,189 : 597,079.50 = 597,079.50 : x
2. Step 2: Convert to fraction form
   393,189/597,079.50 = 597,079.50/x
3. Step 3: Cross multiply
   393,189x = 597,079.50 × 597,079.50
4. Step 4: Simplify right side
   393,189x = 356,503,929,320.25
5. Step 5: Solve for x
   x = 356,503,929,320.25/393,189
6. Step 6: Final answer
   x = 906,698.63