Finding the Third Proportional to 154,858 and 328,323.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,858 : 328,323.50 = 328,323.50 : x
2. Step 2: Convert to fraction form
   154,858/328,323.50 = 328,323.50/x
3. Step 3: Cross multiply
   154,858x = 328,323.50 × 328,323.50
4. Step 4: Simplify right side
   154,858x = 107,796,320,652.25
5. Step 5: Solve for x
   x = 107,796,320,652.25/154,858
6. Step 6: Final answer
   x = 696,097.85