Finding the Third Proportional to 2,143,216 and 2,910,768

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,216 : 2,910,768 = 2,910,768 : x
2. Step 2: Convert to fraction form
   2,143,216/2,910,768 = 2,910,768/x
3. Step 3: Cross multiply
   2,143,216x = 2,910,768 × 2,910,768
4. Step 4: Simplify right side
   2,143,216x = 8,472,570,349,824
5. Step 5: Solve for x
   x = 8,472,570,349,824/2,143,216
6. Step 6: Final answer
   x = 3,953,204.13