Finding the Third Proportional to 357,717 and 758,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,717 : 758,080.50 = 758,080.50 : x
2. Step 2: Convert to fraction form
   357,717/758,080.50 = 758,080.50/x
3. Step 3: Cross multiply
   357,717x = 758,080.50 × 758,080.50
4. Step 4: Simplify right side
   357,717x = 574,686,044,480.25
5. Step 5: Solve for x
   x = 574,686,044,480.25/357,717
6. Step 6: Final answer
   x = 1,606,538.25