Finding the Third Proportional to 1,291,650 and 1,991,977

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,650 : 1,991,977 = 1,991,977 : x
2. Step 2: Convert to fraction form
   1,291,650/1,991,977 = 1,991,977/x
3. Step 3: Cross multiply
   1,291,650x = 1,991,977 × 1,991,977
4. Step 4: Simplify right side
   1,291,650x = 3,967,972,368,529
5. Step 5: Solve for x
   x = 3,967,972,368,529/1,291,650
6. Step 6: Final answer
   x = 3,072,018.25