Finding the Third Proportional to 351,900 and 829,870

Step by Step Solution

1. Step 1: Write the proportion equation
   351,900 : 829,870 = 829,870 : x
2. Step 2: Convert to fraction form
   351,900/829,870 = 829,870/x
3. Step 3: Cross multiply
   351,900x = 829,870 × 829,870
4. Step 4: Simplify right side
   351,900x = 688,684,216,900
5. Step 5: Solve for x
   x = 688,684,216,900/351,900
6. Step 6: Final answer
   x = 1,957,045.23