Finding the Third Proportional to 538,648 and 1,166,440

Step by Step Solution

1. Step 1: Write the proportion equation
   538,648 : 1,166,440 = 1,166,440 : x
2. Step 2: Convert to fraction form
   538,648/1,166,440 = 1,166,440/x
3. Step 3: Cross multiply
   538,648x = 1,166,440 × 1,166,440
4. Step 4: Simplify right side
   538,648x = 1,360,582,273,600
5. Step 5: Solve for x
   x = 1,360,582,273,600/538,648
6. Step 6: Final answer
   x = 2,525,920.96