Finding the Third Proportional to 669,438 and 1,456,992

Step by Step Solution

1. Step 1: Write the proportion equation
   669,438 : 1,456,992 = 1,456,992 : x
2. Step 2: Convert to fraction form
   669,438/1,456,992 = 1,456,992/x
3. Step 3: Cross multiply
   669,438x = 1,456,992 × 1,456,992
4. Step 4: Simplify right side
   669,438x = 2,122,825,688,064
5. Step 5: Solve for x
   x = 2,122,825,688,064/669,438
6. Step 6: Final answer
   x = 3,171,056.45