Finding the Third Proportional to 4,643,336 and 9,756,688

Step by Step Solution

1. Step 1: Write the proportion equation
   4,643,336 : 9,756,688 = 9,756,688 : x
2. Step 2: Convert to fraction form
   4,643,336/9,756,688 = 9,756,688/x
3. Step 3: Cross multiply
   4,643,336x = 9,756,688 × 9,756,688
4. Step 4: Simplify right side
   4,643,336x = 95,192,960,729,344
5. Step 5: Solve for x
   x = 95,192,960,729,344/4,643,336
6. Step 6: Final answer
   x = 20,500,984.79