Finding the Third Proportional to 154,545 and 325,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,545 : 325,969.50 = 325,969.50 : x
2. Step 2: Convert to fraction form
   154,545/325,969.50 = 325,969.50/x
3. Step 3: Cross multiply
   154,545x = 325,969.50 × 325,969.50
4. Step 4: Simplify right side
   154,545x = 106,256,114,930.25
5. Step 5: Solve for x
   x = 106,256,114,930.25/154,545
6. Step 6: Final answer
   x = 687,541.59