Finding the Third Proportional to 1,726,992 and 3,664,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726,992 : 3,664,440 = 3,664,440 : x
2. Step 2: Convert to fraction form
   1,726,992/3,664,440 = 3,664,440/x
3. Step 3: Cross multiply
   1,726,992x = 3,664,440 × 3,664,440
4. Step 4: Simplify right side
   1,726,992x = 13,428,120,513,600
5. Step 5: Solve for x
   x = 13,428,120,513,600/1,726,992
6. Step 6: Final answer
   x = 7,775,438.75