Finding the Third Proportional to 1,087,139 and 2,557,971

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,139 : 2,557,971 = 2,557,971 : x
2. Step 2: Convert to fraction form
   1,087,139/2,557,971 = 2,557,971/x
3. Step 3: Cross multiply
   1,087,139x = 2,557,971 × 2,557,971
4. Step 4: Simplify right side
   1,087,139x = 6,543,215,636,841
5. Step 5: Solve for x
   x = 6,543,215,636,841/1,087,139
6. Step 6: Final answer
   x = 6,018,747.96