Finding the Third Proportional to 420,006 and 907,404

Step by Step Solution

1. Step 1: Write the proportion equation
   420,006 : 907,404 = 907,404 : x
2. Step 2: Convert to fraction form
   420,006/907,404 = 907,404/x
3. Step 3: Cross multiply
   420,006x = 907,404 × 907,404
4. Step 4: Simplify right side
   420,006x = 823,382,019,216
5. Step 5: Solve for x
   x = 823,382,019,216/420,006
6. Step 6: Final answer
   x = 1,960,405.37