Finding the Third Proportional to 357,346.69 and 536,815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   357,346.69 : 536,815.69 = 536,815.69 : x
2. Step 2: Convert to fraction form
   357,346.69/536,815.69 = 536,815.69/x
3. Step 3: Cross multiply
   357,346.69x = 536,815.69 × 536,815.69
4. Step 4: Simplify right side
   357,346.69x = 288,171,082,346.10
5. Step 5: Solve for x
   x = 288,171,082,346.10/357,346.69
6. Step 6: Final answer
   x = 806,418.79