Finding the Third Proportional to 1,145,640 and 1,683,372

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,640 : 1,683,372 = 1,683,372 : x
2. Step 2: Convert to fraction form
   1,145,640/1,683,372 = 1,683,372/x
3. Step 3: Cross multiply
   1,145,640x = 1,683,372 × 1,683,372
4. Step 4: Simplify right side
   1,145,640x = 2,833,741,290,384
5. Step 5: Solve for x
   x = 2,833,741,290,384/1,145,640
6. Step 6: Final answer
   x = 2,473,500.65