Finding the Third Proportional to 144,416.25 and 308,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,416.25 : 308,152.50 = 308,152.50 : x
2. Step 2: Convert to fraction form
   144,416.25/308,152.50 = 308,152.50/x
3. Step 3: Cross multiply
   144,416.25x = 308,152.50 × 308,152.50
4. Step 4: Simplify right side
   144,416.25x = 94,957,963,256.25
5. Step 5: Solve for x
   x = 94,957,963,256.25/144,416.25
6. Step 6: Final answer
   x = 657,529.63