Finding the Third Proportional to 152,963.25 and 328,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,963.25 : 328,069.50 = 328,069.50 : x
2. Step 2: Convert to fraction form
   152,963.25/328,069.50 = 328,069.50/x
3. Step 3: Cross multiply
   152,963.25x = 328,069.50 × 328,069.50
4. Step 4: Simplify right side
   152,963.25x = 107,629,596,830.25
5. Step 5: Solve for x
   x = 107,629,596,830.25/152,963.25
6. Step 6: Final answer
   x = 703,630.43