Finding the Third Proportional to 1,009,120 and 1,681,806

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,120 : 1,681,806 = 1,681,806 : x
2. Step 2: Convert to fraction form
   1,009,120/1,681,806 = 1,681,806/x
3. Step 3: Cross multiply
   1,009,120x = 1,681,806 × 1,681,806
4. Step 4: Simplify right side
   1,009,120x = 2,828,471,421,636
5. Step 5: Solve for x
   x = 2,828,471,421,636/1,009,120
6. Step 6: Final answer
   x = 2,802,908.89