Finding the Third Proportional to 2,020,172 and 4,488,771

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020,172 : 4,488,771 = 4,488,771 : x
2. Step 2: Convert to fraction form
   2,020,172/4,488,771 = 4,488,771/x
3. Step 3: Cross multiply
   2,020,172x = 4,488,771 × 4,488,771
4. Step 4: Simplify right side
   2,020,172x = 20,149,065,090,441
5. Step 5: Solve for x
   x = 20,149,065,090,441/2,020,172
6. Step 6: Final answer
   x = 9,973,935.43