Finding the Third Proportional to 347,508 and 554,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   347,508 : 554,986.50 = 554,986.50 : x
2. Step 2: Convert to fraction form
   347,508/554,986.50 = 554,986.50/x
3. Step 3: Cross multiply
   347,508x = 554,986.50 × 554,986.50
4. Step 4: Simplify right side
   347,508x = 308,010,015,182.25
5. Step 5: Solve for x
   x = 308,010,015,182.25/347,508
6. Step 6: Final answer
   x = 886,339.35