Finding the Third Proportional to 150,131.25 and 326,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,131.25 : 326,398.50 = 326,398.50 : x
2. Step 2: Convert to fraction form
   150,131.25/326,398.50 = 326,398.50/x
3. Step 3: Cross multiply
   150,131.25x = 326,398.50 × 326,398.50
4. Step 4: Simplify right side
   150,131.25x = 106,535,980,802.25
5. Step 5: Solve for x
   x = 106,535,980,802.25/150,131.25
6. Step 6: Final answer
   x = 709,618.96