Finding the Third Proportional to 705,800 and 1,665,880

Step by Step Solution

1. Step 1: Write the proportion equation
   705,800 : 1,665,880 = 1,665,880 : x
2. Step 2: Convert to fraction form
   705,800/1,665,880 = 1,665,880/x
3. Step 3: Cross multiply
   705,800x = 1,665,880 × 1,665,880
4. Step 4: Simplify right side
   705,800x = 2,775,156,174,400
5. Step 5: Solve for x
   x = 2,775,156,174,400/705,800
6. Step 6: Final answer
   x = 3,931,929.97