Finding the Third Proportional to 147,920.25 and 323,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,920.25 : 323,998.50 = 323,998.50 : x
2. Step 2: Convert to fraction form
   147,920.25/323,998.50 = 323,998.50/x
3. Step 3: Cross multiply
   147,920.25x = 323,998.50 × 323,998.50
4. Step 4: Simplify right side
   147,920.25x = 104,975,028,002.25
5. Step 5: Solve for x
   x = 104,975,028,002.25/147,920.25
6. Step 6: Final answer
   x = 709,673.14