Finding the Third Proportional to 2,673,264 and 4,145,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673,264 : 4,145,640 = 4,145,640 : x
2. Step 2: Convert to fraction form
   2,673,264/4,145,640 = 4,145,640/x
3. Step 3: Cross multiply
   2,673,264x = 4,145,640 × 4,145,640
4. Step 4: Simplify right side
   2,673,264x = 17,186,331,009,600
5. Step 5: Solve for x
   x = 17,186,331,009,600/2,673,264
6. Step 6: Final answer
   x = 6,428,968.86