Finding the Third Proportional to 507,658.50 and 673,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   507,658.50 : 673,870.50 = 673,870.50 : x
2. Step 2: Convert to fraction form
   507,658.50/673,870.50 = 673,870.50/x
3. Step 3: Cross multiply
   507,658.50x = 673,870.50 × 673,870.50
4. Step 4: Simplify right side
   507,658.50x = 454,101,450,770.25
5. Step 5: Solve for x
   x = 454,101,450,770.25/507,658.50
6. Step 6: Final answer
   x = 894,501.82