Finding the Third Proportional to 560,431.50 and 892,191

Step by Step Solution

1. Step 1: Write the proportion equation
   560,431.50 : 892,191 = 892,191 : x
2. Step 2: Convert to fraction form
   560,431.50/892,191 = 892,191/x
3. Step 3: Cross multiply
   560,431.50x = 892,191 × 892,191
4. Step 4: Simplify right side
   560,431.50x = 796,004,780,481
5. Step 5: Solve for x
   x = 796,004,780,481/560,431.50
6. Step 6: Final answer
   x = 1,420,342.68