Finding the Third Proportional to 1,220,538 and 2,658,056

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,538 : 2,658,056 = 2,658,056 : x
2. Step 2: Convert to fraction form
   1,220,538/2,658,056 = 2,658,056/x
3. Step 3: Cross multiply
   1,220,538x = 2,658,056 × 2,658,056
4. Step 4: Simplify right side
   1,220,538x = 7,065,261,699,136
5. Step 5: Solve for x
   x = 7,065,261,699,136/1,220,538
6. Step 6: Final answer
   x = 5,788,645.42