Finding the Third Proportional to 1,099,391 and 1,681,775

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,391 : 1,681,775 = 1,681,775 : x
2. Step 2: Convert to fraction form
   1,099,391/1,681,775 = 1,681,775/x
3. Step 3: Cross multiply
   1,099,391x = 1,681,775 × 1,681,775
4. Step 4: Simplify right side
   1,099,391x = 2,828,367,150,625
5. Step 5: Solve for x
   x = 2,828,367,150,625/1,099,391
6. Step 6: Final answer
   x = 2,572,667.19