Finding the Third Proportional to 3,487,907 and 7,661,438

Step by Step Solution

1. Step 1: Write the proportion equation
   3,487,907 : 7,661,438 = 7,661,438 : x
2. Step 2: Convert to fraction form
   3,487,907/7,661,438 = 7,661,438/x
3. Step 3: Cross multiply
   3,487,907x = 7,661,438 × 7,661,438
4. Step 4: Simplify right side
   3,487,907x = 58,697,632,227,844
5. Step 5: Solve for x
   x = 58,697,632,227,844/3,487,907
6. Step 6: Final answer
   x = 16,828,898.31