Finding the Third Proportional to 1,231,592 and 1,961,220

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,592 : 1,961,220 = 1,961,220 : x
2. Step 2: Convert to fraction form
   1,231,592/1,961,220 = 1,961,220/x
3. Step 3: Cross multiply
   1,231,592x = 1,961,220 × 1,961,220
4. Step 4: Simplify right side
   1,231,592x = 3,846,383,888,400
5. Step 5: Solve for x
   x = 3,846,383,888,400/1,231,592
6. Step 6: Final answer
   x = 3,123,099.12