Finding the Third Proportional to 515,183 and 788,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   515,183 : 788,114.50 = 788,114.50 : x
2. Step 2: Convert to fraction form
   515,183/788,114.50 = 788,114.50/x
3. Step 3: Cross multiply
   515,183x = 788,114.50 × 788,114.50
4. Step 4: Simplify right side
   515,183x = 621,124,465,110.25
5. Step 5: Solve for x
   x = 621,124,465,110.25/515,183
6. Step 6: Final answer
   x = 1,205,638.51