Finding the Third Proportional to 354,798 and 550,882.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,798 : 550,882.50 = 550,882.50 : x
2. Step 2: Convert to fraction form
   354,798/550,882.50 = 550,882.50/x
3. Step 3: Cross multiply
   354,798x = 550,882.50 × 550,882.50
4. Step 4: Simplify right side
   354,798x = 303,471,528,806.25
5. Step 5: Solve for x
   x = 303,471,528,806.25/354,798
6. Step 6: Final answer
   x = 855,336.08