Finding the Third Proportional to 705,808 and 1,665,900

Step by Step Solution

1. Step 1: Write the proportion equation
   705,808 : 1,665,900 = 1,665,900 : x
2. Step 2: Convert to fraction form
   705,808/1,665,900 = 1,665,900/x
3. Step 3: Cross multiply
   705,808x = 1,665,900 × 1,665,900
4. Step 4: Simplify right side
   705,808x = 2,775,222,810,000
5. Step 5: Solve for x
   x = 2,775,222,810,000/705,808
6. Step 6: Final answer
   x = 3,931,979.82