Finding the Third Proportional to 1,145,636 and 1,683,366

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,636 : 1,683,366 = 1,683,366 : x
2. Step 2: Convert to fraction form
   1,145,636/1,683,366 = 1,683,366/x
3. Step 3: Cross multiply
   1,145,636x = 1,683,366 × 1,683,366
4. Step 4: Simplify right side
   1,145,636x = 2,833,721,089,956
5. Step 5: Solve for x
   x = 2,833,721,089,956/1,145,636
6. Step 6: Final answer
   x = 2,473,491.66