Finding the Third Proportional to 520,083.50 and 776,693

Step by Step Solution

1. Step 1: Write the proportion equation
   520,083.50 : 776,693 = 776,693 : x
2. Step 2: Convert to fraction form
   520,083.50/776,693 = 776,693/x
3. Step 3: Cross multiply
   520,083.50x = 776,693 × 776,693
4. Step 4: Simplify right side
   520,083.50x = 603,252,016,249
5. Step 5: Solve for x
   x = 603,252,016,249/520,083.50
6. Step 6: Final answer
   x = 1,159,913.78