Finding the Third Proportional to 907,406 and 1,392,834

Step by Step Solution

1. Step 1: Write the proportion equation
   907,406 : 1,392,834 = 1,392,834 : x
2. Step 2: Convert to fraction form
   907,406/1,392,834 = 1,392,834/x
3. Step 3: Cross multiply
   907,406x = 1,392,834 × 1,392,834
4. Step 4: Simplify right side
   907,406x = 1,939,986,551,556
5. Step 5: Solve for x
   x = 1,939,986,551,556/907,406
6. Step 6: Final answer
   x = 2,137,947.68