Finding the Third Proportional to 772,458 and 1,131,031

Step by Step Solution

1. Step 1: Write the proportion equation
   772,458 : 1,131,031 = 1,131,031 : x
2. Step 2: Convert to fraction form
   772,458/1,131,031 = 1,131,031/x
3. Step 3: Cross multiply
   772,458x = 1,131,031 × 1,131,031
4. Step 4: Simplify right side
   772,458x = 1,279,231,122,961
5. Step 5: Solve for x
   x = 1,279,231,122,961/772,458
6. Step 6: Final answer
   x = 1,656,052.66