Finding the Third Proportional to 1,628,607 and 3,578,433

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628,607 : 3,578,433 = 3,578,433 : x
2. Step 2: Convert to fraction form
   1,628,607/3,578,433 = 3,578,433/x
3. Step 3: Cross multiply
   1,628,607x = 3,578,433 × 3,578,433
4. Step 4: Simplify right side
   1,628,607x = 12,805,182,735,489
5. Step 5: Solve for x
   x = 12,805,182,735,489/1,628,607
6. Step 6: Final answer
   x = 7,862,659.77