Finding the Third Proportional to 207,975 and 425,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,975 : 425,805.50 = 425,805.50 : x
2. Step 2: Convert to fraction form
   207,975/425,805.50 = 425,805.50/x
3. Step 3: Cross multiply
   207,975x = 425,805.50 × 425,805.50
4. Step 4: Simplify right side
   207,975x = 181,310,323,830.25
5. Step 5: Solve for x
   x = 181,310,323,830.25/207,975
6. Step 6: Final answer
   x = 871,789.03