Finding the Third Proportional to 4,347,378 and 9,555,300

Step by Step Solution

1. Step 1: Write the proportion equation
   4,347,378 : 9,555,300 = 9,555,300 : x
2. Step 2: Convert to fraction form
   4,347,378/9,555,300 = 9,555,300/x
3. Step 3: Cross multiply
   4,347,378x = 9,555,300 × 9,555,300
4. Step 4: Simplify right side
   4,347,378x = 91,303,758,090,000
5. Step 5: Solve for x
   x = 91,303,758,090,000/4,347,378
6. Step 6: Final answer
   x = 21,002,028.83