Finding the Third Proportional to 581,456 and 1,287,264

Step by Step Solution

1. Step 1: Write the proportion equation
   581,456 : 1,287,264 = 1,287,264 : x
2. Step 2: Convert to fraction form
   581,456/1,287,264 = 1,287,264/x
3. Step 3: Cross multiply
   581,456x = 1,287,264 × 1,287,264
4. Step 4: Simplify right side
   581,456x = 1,657,048,605,696
5. Step 5: Solve for x
   x = 1,657,048,605,696/581,456
6. Step 6: Final answer
   x = 2,849,826.31