Finding the Third Proportional to 3,472,564 and 7,478,485

Step by Step Solution

1. Step 1: Write the proportion equation
   3,472,564 : 7,478,485 = 7,478,485 : x
2. Step 2: Convert to fraction form
   3,472,564/7,478,485 = 7,478,485/x
3. Step 3: Cross multiply
   3,472,564x = 7,478,485 × 7,478,485
4. Step 4: Simplify right side
   3,472,564x = 55,927,737,895,225
5. Step 5: Solve for x
   x = 55,927,737,895,225/3,472,564
6. Step 6: Final answer
   x = 16,105,603.21