Finding the Third Proportional to 515,063 and 757,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   515,063 : 757,703.50 = 757,703.50 : x
2. Step 2: Convert to fraction form
   515,063/757,703.50 = 757,703.50/x
3. Step 3: Cross multiply
   515,063x = 757,703.50 × 757,703.50
4. Step 4: Simplify right side
   515,063x = 574,114,593,912.25
5. Step 5: Solve for x
   x = 574,114,593,912.25/515,063
6. Step 6: Final answer
   x = 1,114,649.26