Finding the Third Proportional to 1,388,610 and 2,082,915

Step by Step Solution

1. Step 1: Write the proportion equation
   1,388,610 : 2,082,915 = 2,082,915 : x
2. Step 2: Convert to fraction form
   1,388,610/2,082,915 = 2,082,915/x
3. Step 3: Cross multiply
   1,388,610x = 2,082,915 × 2,082,915
4. Step 4: Simplify right side
   1,388,610x = 4,338,534,897,225
5. Step 5: Solve for x
   x = 4,338,534,897,225/1,388,610
6. Step 6: Final answer
   x = 3,124,372.50