Finding the Third Proportional to 3,478,992 and 5,308,472

Step by Step Solution

1. Step 1: Write the proportion equation
   3,478,992 : 5,308,472 = 5,308,472 : x
2. Step 2: Convert to fraction form
   3,478,992/5,308,472 = 5,308,472/x
3. Step 3: Cross multiply
   3,478,992x = 5,308,472 × 5,308,472
4. Step 4: Simplify right side
   3,478,992x = 28,179,874,974,784
5. Step 5: Solve for x
   x = 28,179,874,974,784/3,478,992
6. Step 6: Final answer
   x = 8,100,011.43