Finding the Third Proportional to 574,842 and 1,209,216

Step by Step Solution

1. Step 1: Write the proportion equation
   574,842 : 1,209,216 = 1,209,216 : x
2. Step 2: Convert to fraction form
   574,842/1,209,216 = 1,209,216/x
3. Step 3: Cross multiply
   574,842x = 1,209,216 × 1,209,216
4. Step 4: Simplify right side
   574,842x = 1,462,203,334,656
5. Step 5: Solve for x
   x = 1,462,203,334,656/574,842
6. Step 6: Final answer
   x = 2,543,661.28