Finding the Third Proportional to 147,259.69 and 317,685.38

Step by Step Solution

1. Step 1: Write the proportion equation
   147,259.69 : 317,685.38 = 317,685.38 : x
2. Step 2: Convert to fraction form
   147,259.69/317,685.38 = 317,685.38/x
3. Step 3: Cross multiply
   147,259.69x = 317,685.38 × 317,685.38
4. Step 4: Simplify right side
   147,259.69x = 100,923,997,488.89
5. Step 5: Solve for x
   x = 100,923,997,488.89/147,259.69
6. Step 6: Final answer
   x = 685,347.08