Finding the Third Proportional to 1,087,678 and 1,528,971

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,678 : 1,528,971 = 1,528,971 : x
2. Step 2: Convert to fraction form
   1,087,678/1,528,971 = 1,528,971/x
3. Step 3: Cross multiply
   1,087,678x = 1,528,971 × 1,528,971
4. Step 4: Simplify right side
   1,087,678x = 2,337,752,318,841
5. Step 5: Solve for x
   x = 2,337,752,318,841/1,087,678
6. Step 6: Final answer
   x = 2,149,305.51