Finding the Third Proportional to 907,424 and 1,392,864

Step by Step Solution

1. Step 1: Write the proportion equation
   907,424 : 1,392,864 = 1,392,864 : x
2. Step 2: Convert to fraction form
   907,424/1,392,864 = 1,392,864/x
3. Step 3: Cross multiply
   907,424x = 1,392,864 × 1,392,864
4. Step 4: Simplify right side
   907,424x = 1,940,070,122,496
5. Step 5: Solve for x
   x = 1,940,070,122,496/907,424
6. Step 6: Final answer
   x = 2,137,997.37