Finding the Third Proportional to 383,511 and 573,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,511 : 573,079.50 = 573,079.50 : x
2. Step 2: Convert to fraction form
   383,511/573,079.50 = 573,079.50/x
3. Step 3: Cross multiply
   383,511x = 573,079.50 × 573,079.50
4. Step 4: Simplify right side
   383,511x = 328,420,113,320.25
5. Step 5: Solve for x
   x = 328,420,113,320.25/383,511
6. Step 6: Final answer
   x = 856,351.22