Finding the Third Proportional to 2,255,431 and 4,862,972

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255,431 : 4,862,972 = 4,862,972 : x
2. Step 2: Convert to fraction form
   2,255,431/4,862,972 = 4,862,972/x
3. Step 3: Cross multiply
   2,255,431x = 4,862,972 × 4,862,972
4. Step 4: Simplify right side
   2,255,431x = 23,648,496,672,784
5. Step 5: Solve for x
   x = 23,648,496,672,784/2,255,431
6. Step 6: Final answer
   x = 10,485,134.18