Finding the Third Proportional to 258,935.50 and 553,850

Step by Step Solution

1. Step 1: Write the proportion equation
   258,935.50 : 553,850 = 553,850 : x
2. Step 2: Convert to fraction form
   258,935.50/553,850 = 553,850/x
3. Step 3: Cross multiply
   258,935.50x = 553,850 × 553,850
4. Step 4: Simplify right side
   258,935.50x = 306,749,822,500
5. Step 5: Solve for x
   x = 306,749,822,500/258,935.50
6. Step 6: Final answer
   x = 1,184,657.27