Finding the Third Proportional to 1,308,780 and 2,768,460

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,780 : 2,768,460 = 2,768,460 : x
2. Step 2: Convert to fraction form
   1,308,780/2,768,460 = 2,768,460/x
3. Step 3: Cross multiply
   1,308,780x = 2,768,460 × 2,768,460
4. Step 4: Simplify right side
   1,308,780x = 7,664,370,771,600
5. Step 5: Solve for x
   x = 7,664,370,771,600/1,308,780
6. Step 6: Final answer
   x = 5,856,118.50