Finding the Third Proportional to 383,653.50 and 573,111

Step by Step Solution

1. Step 1: Write the proportion equation
   383,653.50 : 573,111 = 573,111 : x
2. Step 2: Convert to fraction form
   383,653.50/573,111 = 573,111/x
3. Step 3: Cross multiply
   383,653.50x = 573,111 × 573,111
4. Step 4: Simplify right side
   383,653.50x = 328,456,218,321
5. Step 5: Solve for x
   x = 328,456,218,321/383,653.50
6. Step 6: Final answer
   x = 856,127.26