Finding the Third Proportional to 3,431,974 and 7,553,420

Step by Step Solution

1. Step 1: Write the proportion equation
   3,431,974 : 7,553,420 = 7,553,420 : x
2. Step 2: Convert to fraction form
   3,431,974/7,553,420 = 7,553,420/x
3. Step 3: Cross multiply
   3,431,974x = 7,553,420 × 7,553,420
4. Step 4: Simplify right side
   3,431,974x = 57,054,153,696,400
5. Step 5: Solve for x
   x = 57,054,153,696,400/3,431,974
6. Step 6: Final answer
   x = 16,624,296.60