Finding the Third Proportional to 1,009,144 and 1,681,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,144 : 1,681,840 = 1,681,840 : x
2. Step 2: Convert to fraction form
   1,009,144/1,681,840 = 1,681,840/x
3. Step 3: Cross multiply
   1,009,144x = 1,681,840 × 1,681,840
4. Step 4: Simplify right side
   1,009,144x = 2,828,585,785,600
5. Step 5: Solve for x
   x = 2,828,585,785,600/1,009,144
6. Step 6: Final answer
   x = 2,802,955.56