Finding the Third Proportional to 918,105 and 1,988,670

Step by Step Solution

1. Step 1: Write the proportion equation
   918,105 : 1,988,670 = 1,988,670 : x
2. Step 2: Convert to fraction form
   918,105/1,988,670 = 1,988,670/x
3. Step 3: Cross multiply
   918,105x = 1,988,670 × 1,988,670
4. Step 4: Simplify right side
   918,105x = 3,954,808,368,900
5. Step 5: Solve for x
   x = 3,954,808,368,900/918,105
6. Step 6: Final answer
   x = 4,307,577.42