Finding the Third Proportional to 1,099,400 and 1,681,796

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,400 : 1,681,796 = 1,681,796 : x
2. Step 2: Convert to fraction form
   1,099,400/1,681,796 = 1,681,796/x
3. Step 3: Cross multiply
   1,099,400x = 1,681,796 × 1,681,796
4. Step 4: Simplify right side
   1,099,400x = 2,828,437,785,616
5. Step 5: Solve for x
   x = 2,828,437,785,616/1,099,400
6. Step 6: Final answer
   x = 2,572,710.37