Finding the Third Proportional to 1,993,620 and 4,248,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993,620 : 4,248,216 = 4,248,216 : x
2. Step 2: Convert to fraction form
   1,993,620/4,248,216 = 4,248,216/x
3. Step 3: Cross multiply
   1,993,620x = 4,248,216 × 4,248,216
4. Step 4: Simplify right side
   1,993,620x = 18,047,339,182,656
5. Step 5: Solve for x
   x = 18,047,339,182,656/1,993,620
6. Step 6: Final answer
   x = 9,052,547.22