Finding the Third Proportional to 4,614,574 and 9,938,816

Step by Step Solution

1. Step 1: Write the proportion equation
   4,614,574 : 9,938,816 = 9,938,816 : x
2. Step 2: Convert to fraction form
   4,614,574/9,938,816 = 9,938,816/x
3. Step 3: Cross multiply
   4,614,574x = 9,938,816 × 9,938,816
4. Step 4: Simplify right side
   4,614,574x = 98,780,063,481,856
5. Step 5: Solve for x
   x = 98,780,063,481,856/4,614,574
6. Step 6: Final answer
   x = 21,406,106.71