Finding the Third Proportional to 1,311,201 and 1,978,850

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,201 : 1,978,850 = 1,978,850 : x
2. Step 2: Convert to fraction form
   1,311,201/1,978,850 = 1,978,850/x
3. Step 3: Cross multiply
   1,311,201x = 1,978,850 × 1,978,850
4. Step 4: Simplify right side
   1,311,201x = 3,915,847,322,500
5. Step 5: Solve for x
   x = 3,915,847,322,500/1,311,201
6. Step 6: Final answer
   x = 2,986,458.46