Finding the Third Proportional to 1,281,872 and 2,010,805

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,872 : 2,010,805 = 2,010,805 : x
2. Step 2: Convert to fraction form
   1,281,872/2,010,805 = 2,010,805/x
3. Step 3: Cross multiply
   1,281,872x = 2,010,805 × 2,010,805
4. Step 4: Simplify right side
   1,281,872x = 4,043,336,748,025
5. Step 5: Solve for x
   x = 4,043,336,748,025/1,281,872
6. Step 6: Final answer
   x = 3,154,243.75