Finding the Third Proportional to 2,912,840 and 4,522,621

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912,840 : 4,522,621 = 4,522,621 : x
2. Step 2: Convert to fraction form
   2,912,840/4,522,621 = 4,522,621/x
3. Step 3: Cross multiply
   2,912,840x = 4,522,621 × 4,522,621
4. Step 4: Simplify right side
   2,912,840x = 20,454,100,709,641
5. Step 5: Solve for x
   x = 20,454,100,709,641/2,912,840
6. Step 6: Final answer
   x = 7,022,047.46