Finding the Third Proportional to 1,240,540 and 2,631,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,540 : 2,631,640 = 2,631,640 : x
2. Step 2: Convert to fraction form
   1,240,540/2,631,640 = 2,631,640/x
3. Step 3: Cross multiply
   1,240,540x = 2,631,640 × 2,631,640
4. Step 4: Simplify right side
   1,240,540x = 6,925,529,089,600
5. Step 5: Solve for x
   x = 6,925,529,089,600/1,240,540
6. Step 6: Final answer
   x = 5,582,672.94