Finding the Third Proportional to 578,425.50 and 1,245,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   578,425.50 : 1,245,667.50 = 1,245,667.50 : x
2. Step 2: Convert to fraction form
   578,425.50/1,245,667.50 = 1,245,667.50/x
3. Step 3: Cross multiply
   578,425.50x = 1,245,667.50 × 1,245,667.50
4. Step 4: Simplify right side
   578,425.50x = 1,551,687,520,556.25
5. Step 5: Solve for x
   x = 1,551,687,520,556.25/578,425.50
6. Step 6: Final answer
   x = 2,682,605.66