Finding the Third Proportional to 907,404 and 1,392,828

Step by Step Solution

1. Step 1: Write the proportion equation
   907,404 : 1,392,828 = 1,392,828 : x
2. Step 2: Convert to fraction form
   907,404/1,392,828 = 1,392,828/x
3. Step 3: Cross multiply
   907,404x = 1,392,828 × 1,392,828
4. Step 4: Simplify right side
   907,404x = 1,939,969,837,584
5. Step 5: Solve for x
   x = 1,939,969,837,584/907,404
6. Step 6: Final answer
   x = 2,137,933.97