Finding the Third Proportional to 343,608 and 552,347.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,608 : 552,347.50 = 552,347.50 : x
2. Step 2: Convert to fraction form
   343,608/552,347.50 = 552,347.50/x
3. Step 3: Cross multiply
   343,608x = 552,347.50 × 552,347.50
4. Step 4: Simplify right side
   343,608x = 305,087,760,756.25
5. Step 5: Solve for x
   x = 305,087,760,756.25/343,608
6. Step 6: Final answer
   x = 887,894.81