Finding the Third Proportional to 3,914,502 and 5,512,509

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914,502 : 5,512,509 = 5,512,509 : x
2. Step 2: Convert to fraction form
   3,914,502/5,512,509 = 5,512,509/x
3. Step 3: Cross multiply
   3,914,502x = 5,512,509 × 5,512,509
4. Step 4: Simplify right side
   3,914,502x = 30,387,755,475,081
5. Step 5: Solve for x
   x = 30,387,755,475,081/3,914,502
6. Step 6: Final answer
   x = 7,762,866.25