Finding the Third Proportional to 3,434,436 and 7,458,840

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434,436 : 7,458,840 = 7,458,840 : x
2. Step 2: Convert to fraction form
   3,434,436/7,458,840 = 7,458,840/x
3. Step 3: Cross multiply
   3,434,436x = 7,458,840 × 7,458,840
4. Step 4: Simplify right side
   3,434,436x = 55,634,294,145,600
5. Step 5: Solve for x
   x = 55,634,294,145,600/3,434,436
6. Step 6: Final answer
   x = 16,198,960.80