Finding the Third Proportional to 383,083.50 and 777,111

Step by Step Solution

1. Step 1: Write the proportion equation
   383,083.50 : 777,111 = 777,111 : x
2. Step 2: Convert to fraction form
   383,083.50/777,111 = 777,111/x
3. Step 3: Cross multiply
   383,083.50x = 777,111 × 777,111
4. Step 4: Simplify right side
   383,083.50x = 603,901,506,321
5. Step 5: Solve for x
   x = 603,901,506,321/383,083.50
6. Step 6: Final answer
   x = 1,576,422.65