Finding the Third Proportional to 1,729,990 and 3,715,706

Step by Step Solution

1. Step 1: Write the proportion equation
   1,729,990 : 3,715,706 = 3,715,706 : x
2. Step 2: Convert to fraction form
   1,729,990/3,715,706 = 3,715,706/x
3. Step 3: Cross multiply
   1,729,990x = 3,715,706 × 3,715,706
4. Step 4: Simplify right side
   1,729,990x = 13,806,471,078,436
5. Step 5: Solve for x
   x = 13,806,471,078,436/1,729,990
6. Step 6: Final answer
   x = 7,980,665.25