Finding the Third Proportional to 275,265 and 425,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   275,265 : 425,443.50 = 425,443.50 : x
2. Step 2: Convert to fraction form
   275,265/425,443.50 = 425,443.50/x
3. Step 3: Cross multiply
   275,265x = 425,443.50 × 425,443.50
4. Step 4: Simplify right side
   275,265x = 181,002,171,692.25
5. Step 5: Solve for x
   x = 181,002,171,692.25/275,265
6. Step 6: Final answer
   x = 657,556.07