Finding the Third Proportional to 258,159 and 555,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   258,159 : 555,868.50 = 555,868.50 : x
2. Step 2: Convert to fraction form
   258,159/555,868.50 = 555,868.50/x
3. Step 3: Cross multiply
   258,159x = 555,868.50 × 555,868.50
4. Step 4: Simplify right side
   258,159x = 308,989,789,292.25
5. Step 5: Solve for x
   x = 308,989,789,292.25/258,159
6. Step 6: Final answer
   x = 1,196,897.22