Finding the Third Proportional to 517,546 and 1,131,640

Step by Step Solution

1. Step 1: Write the proportion equation
   517,546 : 1,131,640 = 1,131,640 : x
2. Step 2: Convert to fraction form
   517,546/1,131,640 = 1,131,640/x
3. Step 3: Cross multiply
   517,546x = 1,131,640 × 1,131,640
4. Step 4: Simplify right side
   517,546x = 1,280,609,089,600
5. Step 5: Solve for x
   x = 1,280,609,089,600/517,546
6. Step 6: Final answer
   x = 2,474,386.99