Finding the Third Proportional to 339,076 and 524,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,076 : 524,558.50 = 524,558.50 : x
2. Step 2: Convert to fraction form
   339,076/524,558.50 = 524,558.50/x
3. Step 3: Cross multiply
   339,076x = 524,558.50 × 524,558.50
4. Step 4: Simplify right side
   339,076x = 275,161,619,922.25
5. Step 5: Solve for x
   x = 275,161,619,922.25/339,076
6. Step 6: Final answer
   x = 811,504.26