Finding the Third Proportional to 300,773.50 and 423,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,773.50 : 423,181.50 = 423,181.50 : x
2. Step 2: Convert to fraction form
   300,773.50/423,181.50 = 423,181.50/x
3. Step 3: Cross multiply
   300,773.50x = 423,181.50 × 423,181.50
4. Step 4: Simplify right side
   300,773.50x = 179,082,581,942.25
5. Step 5: Solve for x
   x = 179,082,581,942.25/300,773.50
6. Step 6: Final answer
   x = 595,406.78