Finding the Third Proportional to 1,231,557 and 1,961,169

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,557 : 1,961,169 = 1,961,169 : x
2. Step 2: Convert to fraction form
   1,231,557/1,961,169 = 1,961,169/x
3. Step 3: Cross multiply
   1,231,557x = 1,961,169 × 1,961,169
4. Step 4: Simplify right side
   1,231,557x = 3,846,183,846,561
5. Step 5: Solve for x
   x = 3,846,183,846,561/1,231,557
6. Step 6: Final answer
   x = 3,123,025.44