Finding the Third Proportional to 1,281,978 and 1,992,897

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,978 : 1,992,897 = 1,992,897 : x
2. Step 2: Convert to fraction form
   1,281,978/1,992,897 = 1,992,897/x
3. Step 3: Cross multiply
   1,281,978x = 1,992,897 × 1,992,897
4. Step 4: Simplify right side
   1,281,978x = 3,971,638,452,609
5. Step 5: Solve for x
   x = 3,971,638,452,609/1,281,978
6. Step 6: Final answer
   x = 3,098,055.08