Finding the Third Proportional to 277,560 and 654,998

Step by Step Solution

1. Step 1: Write the proportion equation
   277,560 : 654,998 = 654,998 : x
2. Step 2: Convert to fraction form
   277,560/654,998 = 654,998/x
3. Step 3: Cross multiply
   277,560x = 654,998 × 654,998
4. Step 4: Simplify right side
   277,560x = 429,022,380,004
5. Step 5: Solve for x
   x = 429,022,380,004/277,560
6. Step 6: Final answer
   x = 1,545,692.39