Finding the Third Proportional to 644,548 and 1,417,976

Step by Step Solution

1. Step 1: Write the proportion equation
   644,548 : 1,417,976 = 1,417,976 : x
2. Step 2: Convert to fraction form
   644,548/1,417,976 = 1,417,976/x
3. Step 3: Cross multiply
   644,548x = 1,417,976 × 1,417,976
4. Step 4: Simplify right side
   644,548x = 2,010,655,936,576
5. Step 5: Solve for x
   x = 2,010,655,936,576/644,548
6. Step 6: Final answer
   x = 3,119,482.08