Finding the Third Proportional to 643,346 and 946,298

Step by Step Solution

1. Step 1: Write the proportion equation
   643,346 : 946,298 = 946,298 : x
2. Step 2: Convert to fraction form
   643,346/946,298 = 946,298/x
3. Step 3: Cross multiply
   643,346x = 946,298 × 946,298
4. Step 4: Simplify right side
   643,346x = 895,479,904,804
5. Step 5: Solve for x
   x = 895,479,904,804/643,346
6. Step 6: Final answer
   x = 1,391,910.27