Finding the Third Proportional to 1,010,718 and 2,178,900

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,718 : 2,178,900 = 2,178,900 : x
2. Step 2: Convert to fraction form
   1,010,718/2,178,900 = 2,178,900/x
3. Step 3: Cross multiply
   1,010,718x = 2,178,900 × 2,178,900
4. Step 4: Simplify right side
   1,010,718x = 4,747,605,210,000
5. Step 5: Solve for x
   x = 4,747,605,210,000/1,010,718
6. Step 6: Final answer
   x = 4,697,259.98