Finding the Third Proportional to 1,207,240 and 2,635,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207,240 : 2,635,640 = 2,635,640 : x
2. Step 2: Convert to fraction form
   1,207,240/2,635,640 = 2,635,640/x
3. Step 3: Cross multiply
   1,207,240x = 2,635,640 × 2,635,640
4. Step 4: Simplify right side
   1,207,240x = 6,946,598,209,600
5. Step 5: Solve for x
   x = 6,946,598,209,600/1,207,240
6. Step 6: Final answer
   x = 5,754,115.35