Finding the Third Proportional to 2,181,180 and 4,665,624

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181,180 : 4,665,624 = 4,665,624 : x
2. Step 2: Convert to fraction form
   2,181,180/4,665,624 = 4,665,624/x
3. Step 3: Cross multiply
   2,181,180x = 4,665,624 × 4,665,624
4. Step 4: Simplify right side
   2,181,180x = 21,768,047,309,376
5. Step 5: Solve for x
   x = 21,768,047,309,376/2,181,180
6. Step 6: Final answer
   x = 9,979,940.82