Finding the Third Proportional to 1,010,770 and 2,178,988

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,770 : 2,178,988 = 2,178,988 : x
2. Step 2: Convert to fraction form
   1,010,770/2,178,988 = 2,178,988/x
3. Step 3: Cross multiply
   1,010,770x = 2,178,988 × 2,178,988
4. Step 4: Simplify right side
   1,010,770x = 4,747,988,704,144
5. Step 5: Solve for x
   x = 4,747,988,704,144/1,010,770
6. Step 6: Final answer
   x = 4,697,397.73