Finding the Third Proportional to 1,226,245 and 2,688,687

Step by Step Solution

1. Step 1: Write the proportion equation
   1,226,245 : 2,688,687 = 2,688,687 : x
2. Step 2: Convert to fraction form
   1,226,245/2,688,687 = 2,688,687/x
3. Step 3: Cross multiply
   1,226,245x = 2,688,687 × 2,688,687
4. Step 4: Simplify right side
   1,226,245x = 7,229,037,783,969
5. Step 5: Solve for x
   x = 7,229,037,783,969/1,226,245
6. Step 6: Final answer
   x = 5,895,263.82