Finding the Third Proportional to 1,145,638 and 1,683,369

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,638 : 1,683,369 = 1,683,369 : x
2. Step 2: Convert to fraction form
   1,145,638/1,683,369 = 1,683,369/x
3. Step 3: Cross multiply
   1,145,638x = 1,683,369 × 1,683,369
4. Step 4: Simplify right side
   1,145,638x = 2,833,731,190,161
5. Step 5: Solve for x
   x = 2,833,731,190,161/1,145,638
6. Step 6: Final answer
   x = 2,473,496.16