Finding the Third Proportional to 1,219,244 and 1,811,203

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,244 : 1,811,203 = 1,811,203 : x
2. Step 2: Convert to fraction form
   1,219,244/1,811,203 = 1,811,203/x
3. Step 3: Cross multiply
   1,219,244x = 1,811,203 × 1,811,203
4. Step 4: Simplify right side
   1,219,244x = 3,280,456,307,209
5. Step 5: Solve for x
   x = 3,280,456,307,209/1,219,244
6. Step 6: Final answer
   x = 2,690,565.88