Finding the Third Proportional to 1,240,272 and 2,678,832

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,272 : 2,678,832 = 2,678,832 : x
2. Step 2: Convert to fraction form
   1,240,272/2,678,832 = 2,678,832/x
3. Step 3: Cross multiply
   1,240,272x = 2,678,832 × 2,678,832
4. Step 4: Simplify right side
   1,240,272x = 7,176,140,884,224
5. Step 5: Solve for x
   x = 7,176,140,884,224/1,240,272
6. Step 6: Final answer
   x = 5,785,941.22