Finding the Third Proportional to 638,508 and 956,003

Step by Step Solution

1. Step 1: Write the proportion equation
   638,508 : 956,003 = 956,003 : x
2. Step 2: Convert to fraction form
   638,508/956,003 = 956,003/x
3. Step 3: Cross multiply
   638,508x = 956,003 × 956,003
4. Step 4: Simplify right side
   638,508x = 913,941,736,009
5. Step 5: Solve for x
   x = 913,941,736,009/638,508
6. Step 6: Final answer
   x = 1,431,370.85