Finding the Third Proportional to 235,553.50 and 515,111

Step by Step Solution

1. Step 1: Write the proportion equation
   235,553.50 : 515,111 = 515,111 : x
2. Step 2: Convert to fraction form
   235,553.50/515,111 = 515,111/x
3. Step 3: Cross multiply
   235,553.50x = 515,111 × 515,111
4. Step 4: Simplify right side
   235,553.50x = 265,339,342,321
5. Step 5: Solve for x
   x = 265,339,342,321/235,553.50
6. Step 6: Final answer
   x = 1,126,450.43