Finding the Third Proportional to 705,780 and 1,665,846

Step by Step Solution

1. Step 1: Write the proportion equation
   705,780 : 1,665,846 = 1,665,846 : x
2. Step 2: Convert to fraction form
   705,780/1,665,846 = 1,665,846/x
3. Step 3: Cross multiply
   705,780x = 1,665,846 × 1,665,846
4. Step 4: Simplify right side
   705,780x = 2,775,042,895,716
5. Step 5: Solve for x
   x = 2,775,042,895,716/705,780
6. Step 6: Final answer
   x = 3,931,880.89