Finding the Third Proportional to 3,393,618 and 7,318,590

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393,618 : 7,318,590 = 7,318,590 : x
2. Step 2: Convert to fraction form
   3,393,618/7,318,590 = 7,318,590/x
3. Step 3: Cross multiply
   3,393,618x = 7,318,590 × 7,318,590
4. Step 4: Simplify right side
   3,393,618x = 53,561,759,588,100
5. Step 5: Solve for x
   x = 53,561,759,588,100/3,393,618
6. Step 6: Final answer
   x = 15,783,084.48