Finding the Third Proportional to 390,799.69 and 593,785.69

Step by Step Solution

1. Step 1: Write the proportion equation
   390,799.69 : 593,785.69 = 593,785.69 : x
2. Step 2: Convert to fraction form
   390,799.69/593,785.69 = 593,785.69/x
3. Step 3: Cross multiply
   390,799.69x = 593,785.69 × 593,785.69
4. Step 4: Simplify right side
   390,799.69x = 352,581,442,679.85
5. Step 5: Solve for x
   x = 352,581,442,679.85/390,799.69
6. Step 6: Final answer
   x = 902,205.03