Finding the Third Proportional to 4,639,728 and 7,098,264

Step by Step Solution

1. Step 1: Write the proportion equation
   4,639,728 : 7,098,264 = 7,098,264 : x
2. Step 2: Convert to fraction form
   4,639,728/7,098,264 = 7,098,264/x
3. Step 3: Cross multiply
   4,639,728x = 7,098,264 × 7,098,264
4. Step 4: Simplify right side
   4,639,728x = 50,385,351,813,696
5. Step 5: Solve for x
   x = 50,385,351,813,696/4,639,728
6. Step 6: Final answer
   x = 10,859,548.62