Finding the Third Proportional to 1,215,864 and 1,776,897

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,864 : 1,776,897 = 1,776,897 : x
2. Step 2: Convert to fraction form
   1,215,864/1,776,897 = 1,776,897/x
3. Step 3: Cross multiply
   1,215,864x = 1,776,897 × 1,776,897
4. Step 4: Simplify right side
   1,215,864x = 3,157,362,948,609
5. Step 5: Solve for x
   x = 3,157,362,948,609/1,215,864
6. Step 6: Final answer
   x = 2,596,806.01