Finding the Third Proportional to 263,236 and 384,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   263,236 : 384,981.50 = 384,981.50 : x
2. Step 2: Convert to fraction form
   263,236/384,981.50 = 384,981.50/x
3. Step 3: Cross multiply
   263,236x = 384,981.50 × 384,981.50
4. Step 4: Simplify right side
   263,236x = 148,210,755,342.25
5. Step 5: Solve for x
   x = 148,210,755,342.25/263,236
6. Step 6: Final answer
   x = 563,033.76