Finding the Third Proportional to 4,621,562 and 9,973,856

Step by Step Solution

1. Step 1: Write the proportion equation
   4,621,562 : 9,973,856 = 9,973,856 : x
2. Step 2: Convert to fraction form
   4,621,562/9,973,856 = 9,973,856/x
3. Step 3: Cross multiply
   4,621,562x = 9,973,856 × 9,973,856
4. Step 4: Simplify right side
   4,621,562x = 99,477,803,508,736
5. Step 5: Solve for x
   x = 99,477,803,508,736/4,621,562
6. Step 6: Final answer
   x = 21,524,714.70