Finding the Third Proportional to 393,835.50 and 802,116

Step by Step Solution

1. Step 1: Write the proportion equation
   393,835.50 : 802,116 = 802,116 : x
2. Step 2: Convert to fraction form
   393,835.50/802,116 = 802,116/x
3. Step 3: Cross multiply
   393,835.50x = 802,116 × 802,116
4. Step 4: Simplify right side
   393,835.50x = 643,390,077,456
5. Step 5: Solve for x
   x = 643,390,077,456/393,835.50
6. Step 6: Final answer
   x = 1,633,651.81