Finding the Third Proportional to 705,308 and 1,664,699

Step by Step Solution

1. Step 1: Write the proportion equation
   705,308 : 1,664,699 = 1,664,699 : x
2. Step 2: Convert to fraction form
   705,308/1,664,699 = 1,664,699/x
3. Step 3: Cross multiply
   705,308x = 1,664,699 × 1,664,699
4. Step 4: Simplify right side
   705,308x = 2,771,222,760,601
5. Step 5: Solve for x
   x = 2,771,222,760,601/705,308
6. Step 6: Final answer
   x = 3,929,095.89