Finding the Third Proportional to 1,214,990 and 1,930,991

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,990 : 1,930,991 = 1,930,991 : x
2. Step 2: Convert to fraction form
   1,214,990/1,930,991 = 1,930,991/x
3. Step 3: Cross multiply
   1,214,990x = 1,930,991 × 1,930,991
4. Step 4: Simplify right side
   1,214,990x = 3,728,726,242,081
5. Step 5: Solve for x
   x = 3,728,726,242,081/1,214,990
6. Step 6: Final answer
   x = 3,068,935.75