Finding the Third Proportional to 1,107,396 and 1,683,489

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107,396 : 1,683,489 = 1,683,489 : x
2. Step 2: Convert to fraction form
   1,107,396/1,683,489 = 1,683,489/x
3. Step 3: Cross multiply
   1,107,396x = 1,683,489 × 1,683,489
4. Step 4: Simplify right side
   1,107,396x = 2,834,135,213,121
5. Step 5: Solve for x
   x = 2,834,135,213,121/1,107,396
6. Step 6: Final answer
   x = 2,559,278.90