Finding the Third Proportional to 649,578 and 1,417,200

Step by Step Solution

1. Step 1: Write the proportion equation
   649,578 : 1,417,200 = 1,417,200 : x
2. Step 2: Convert to fraction form
   649,578/1,417,200 = 1,417,200/x
3. Step 3: Cross multiply
   649,578x = 1,417,200 × 1,417,200
4. Step 4: Simplify right side
   649,578x = 2,008,455,840,000
5. Step 5: Solve for x
   x = 2,008,455,840,000/649,578
6. Step 6: Final answer
   x = 3,091,939.44