Finding the Third Proportional to 1,117,215 and 2,428,830

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,215 : 2,428,830 = 2,428,830 : x
2. Step 2: Convert to fraction form
   1,117,215/2,428,830 = 2,428,830/x
3. Step 3: Cross multiply
   1,117,215x = 2,428,830 × 2,428,830
4. Step 4: Simplify right side
   1,117,215x = 5,899,215,168,900
5. Step 5: Solve for x
   x = 5,899,215,168,900/1,117,215
6. Step 6: Final answer
   x = 5,280,286.40