Finding the Third Proportional to 1,099,381 and 1,681,766

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,381 : 1,681,766 = 1,681,766 : x
2. Step 2: Convert to fraction form
   1,099,381/1,681,766 = 1,681,766/x
3. Step 3: Cross multiply
   1,099,381x = 1,681,766 × 1,681,766
4. Step 4: Simplify right side
   1,099,381x = 2,828,336,878,756
5. Step 5: Solve for x
   x = 2,828,336,878,756/1,099,381
6. Step 6: Final answer
   x = 2,572,663.05