Finding the Third Proportional to 1,123,440 and 1,722,699

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,440 : 1,722,699 = 1,722,699 : x
2. Step 2: Convert to fraction form
   1,123,440/1,722,699 = 1,722,699/x
3. Step 3: Cross multiply
   1,123,440x = 1,722,699 × 1,722,699
4. Step 4: Simplify right side
   1,123,440x = 2,967,691,844,601
5. Step 5: Solve for x
   x = 2,967,691,844,601/1,123,440
6. Step 6: Final answer
   x = 2,641,611.34