Finding the Third Proportional to 1,242,496 and 2,688,104

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,496 : 2,688,104 = 2,688,104 : x
2. Step 2: Convert to fraction form
   1,242,496/2,688,104 = 2,688,104/x
3. Step 3: Cross multiply
   1,242,496x = 2,688,104 × 2,688,104
4. Step 4: Simplify right side
   1,242,496x = 7,225,903,114,816
5. Step 5: Solve for x
   x = 7,225,903,114,816/1,242,496
6. Step 6: Final answer
   x = 5,815,634.91