Finding the Third Proportional to 1,248,018 and 1,783,431

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,018 : 1,783,431 = 1,783,431 : x
2. Step 2: Convert to fraction form
   1,248,018/1,783,431 = 1,783,431/x
3. Step 3: Cross multiply
   1,248,018x = 1,783,431 × 1,783,431
4. Step 4: Simplify right side
   1,248,018x = 3,180,626,131,761
5. Step 5: Solve for x
   x = 3,180,626,131,761/1,248,018
6. Step 6: Final answer
   x = 2,548,541.87