Finding the Third Proportional to 920,648 and 2,008,642

Step by Step Solution

1. Step 1: Write the proportion equation
   920,648 : 2,008,642 = 2,008,642 : x
2. Step 2: Convert to fraction form
   920,648/2,008,642 = 2,008,642/x
3. Step 3: Cross multiply
   920,648x = 2,008,642 × 2,008,642
4. Step 4: Simplify right side
   920,648x = 4,034,642,684,164
5. Step 5: Solve for x
   x = 4,034,642,684,164/920,648
6. Step 6: Final answer
   x = 4,382,394.45