Finding the Third Proportional to 584,456 and 1,256,310

Step by Step Solution

1. Step 1: Write the proportion equation
   584,456 : 1,256,310 = 1,256,310 : x
2. Step 2: Convert to fraction form
   584,456/1,256,310 = 1,256,310/x
3. Step 3: Cross multiply
   584,456x = 1,256,310 × 1,256,310
4. Step 4: Simplify right side
   584,456x = 1,578,314,816,100
5. Step 5: Solve for x
   x = 1,578,314,816,100/584,456
6. Step 6: Final answer
   x = 2,700,485.27