Finding the Third Proportional to 567,342 and 1,209,780

Step by Step Solution

1. Step 1: Write the proportion equation
   567,342 : 1,209,780 = 1,209,780 : x
2. Step 2: Convert to fraction form
   567,342/1,209,780 = 1,209,780/x
3. Step 3: Cross multiply
   567,342x = 1,209,780 × 1,209,780
4. Step 4: Simplify right side
   567,342x = 1,463,567,648,400
5. Step 5: Solve for x
   x = 1,463,567,648,400/567,342
6. Step 6: Final answer
   x = 2,579,692.05