Finding the Third Proportional to 545,780 and 1,274,756

Step by Step Solution

1. Step 1: Write the proportion equation
   545,780 : 1,274,756 = 1,274,756 : x
2. Step 2: Convert to fraction form
   545,780/1,274,756 = 1,274,756/x
3. Step 3: Cross multiply
   545,780x = 1,274,756 × 1,274,756
4. Step 4: Simplify right side
   545,780x = 1,625,002,859,536
5. Step 5: Solve for x
   x = 1,625,002,859,536/545,780
6. Step 6: Final answer
   x = 2,977,395.40