Finding the Third Proportional to 1,287,604 and 2,771,560

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,604 : 2,771,560 = 2,771,560 : x
2. Step 2: Convert to fraction form
   1,287,604/2,771,560 = 2,771,560/x
3. Step 3: Cross multiply
   1,287,604x = 2,771,560 × 2,771,560
4. Step 4: Simplify right side
   1,287,604x = 7,681,544,833,600
5. Step 5: Solve for x
   x = 7,681,544,833,600/1,287,604
6. Step 6: Final answer
   x = 5,965,766.52