Finding the Third Proportional to 3,487,905 and 7,661,434

Step by Step Solution

1. Step 1: Write the proportion equation
   3,487,905 : 7,661,434 = 7,661,434 : x
2. Step 2: Convert to fraction form
   3,487,905/7,661,434 = 7,661,434/x
3. Step 3: Cross multiply
   3,487,905x = 7,661,434 × 7,661,434
4. Step 4: Simplify right side
   3,487,905x = 58,697,570,936,356
5. Step 5: Solve for x
   x = 58,697,570,936,356/3,487,905
6. Step 6: Final answer
   x = 16,828,890.39