Finding the Third Proportional to 2,442,645 and 5,209,902

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442,645 : 5,209,902 = 5,209,902 : x
2. Step 2: Convert to fraction form
   2,442,645/5,209,902 = 5,209,902/x
3. Step 3: Cross multiply
   2,442,645x = 5,209,902 × 5,209,902
4. Step 4: Simplify right side
   2,442,645x = 27,143,078,849,604
5. Step 5: Solve for x
   x = 27,143,078,849,604/2,442,645
6. Step 6: Final answer
   x = 11,112,166.87