Finding the Third Proportional to 647,236 and 1,418,888

Step by Step Solution

1. Step 1: Write the proportion equation
   647,236 : 1,418,888 = 1,418,888 : x
2. Step 2: Convert to fraction form
   647,236/1,418,888 = 1,418,888/x
3. Step 3: Cross multiply
   647,236x = 1,418,888 × 1,418,888
4. Step 4: Simplify right side
   647,236x = 2,013,243,156,544
5. Step 5: Solve for x
   x = 2,013,243,156,544/647,236
6. Step 6: Final answer
   x = 3,110,524.07