Finding the Third Proportional to 393,109.50 and 589,050

Step by Step Solution

1. Step 1: Write the proportion equation
   393,109.50 : 589,050 = 589,050 : x
2. Step 2: Convert to fraction form
   393,109.50/589,050 = 589,050/x
3. Step 3: Cross multiply
   393,109.50x = 589,050 × 589,050
4. Step 4: Simplify right side
   393,109.50x = 346,979,902,500
5. Step 5: Solve for x
   x = 346,979,902,500/393,109.50
6. Step 6: Final answer
   x = 882,654.58