Finding the Third Proportional to 1,011,628 and 2,116,781

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,628 : 2,116,781 = 2,116,781 : x
2. Step 2: Convert to fraction form
   1,011,628/2,116,781 = 2,116,781/x
3. Step 3: Cross multiply
   1,011,628x = 2,116,781 × 2,116,781
4. Step 4: Simplify right side
   1,011,628x = 4,480,761,801,961
5. Step 5: Solve for x
   x = 4,480,761,801,961/1,011,628
6. Step 6: Final answer
   x = 4,429,258.39