Finding the Third Proportional to 631,896 and 1,391,872

Step by Step Solution

1. Step 1: Write the proportion equation
   631,896 : 1,391,872 = 1,391,872 : x
2. Step 2: Convert to fraction form
   631,896/1,391,872 = 1,391,872/x
3. Step 3: Cross multiply
   631,896x = 1,391,872 × 1,391,872
4. Step 4: Simplify right side
   631,896x = 1,937,307,664,384
5. Step 5: Solve for x
   x = 1,937,307,664,384/631,896
6. Step 6: Final answer
   x = 3,065,864.74