Finding the Third Proportional to 124,704 and 258,277.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,704 : 258,277.50 = 258,277.50 : x
2. Step 2: Convert to fraction form
   124,704/258,277.50 = 258,277.50/x
3. Step 3: Cross multiply
   124,704x = 258,277.50 × 258,277.50
4. Step 4: Simplify right side
   124,704x = 66,707,267,006.25
5. Step 5: Solve for x
   x = 66,707,267,006.25/124,704
6. Step 6: Final answer
   x = 534,924.84