Finding the Third Proportional to 2,177,320 and 4,728,536

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177,320 : 4,728,536 = 4,728,536 : x
2. Step 2: Convert to fraction form
   2,177,320/4,728,536 = 4,728,536/x
3. Step 3: Cross multiply
   2,177,320x = 4,728,536 × 4,728,536
4. Step 4: Simplify right side
   2,177,320x = 22,359,052,703,296
5. Step 5: Solve for x
   x = 22,359,052,703,296/2,177,320
6. Step 6: Final answer
   x = 10,269,070.56