Finding the Third Proportional to 2,160,438 and 4,709,676

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160,438 : 4,709,676 = 4,709,676 : x
2. Step 2: Convert to fraction form
   2,160,438/4,709,676 = 4,709,676/x
3. Step 3: Cross multiply
   2,160,438x = 4,709,676 × 4,709,676
4. Step 4: Simplify right side
   2,160,438x = 22,181,048,024,976
5. Step 5: Solve for x
   x = 22,181,048,024,976/2,160,438
6. Step 6: Final answer
   x = 10,266,921.81