Finding the Third Proportional to 772,456 and 1,131,028

Step by Step Solution

1. Step 1: Write the proportion equation
   772,456 : 1,131,028 = 1,131,028 : x
2. Step 2: Convert to fraction form
   772,456/1,131,028 = 1,131,028/x
3. Step 3: Cross multiply
   772,456x = 1,131,028 × 1,131,028
4. Step 4: Simplify right side
   772,456x = 1,279,224,336,784
5. Step 5: Solve for x
   x = 1,279,224,336,784/772,456
6. Step 6: Final answer
   x = 1,656,048.16