Finding the Third Proportional to 207,499.50 and 426,303

Step by Step Solution

1. Step 1: Write the proportion equation
   207,499.50 : 426,303 = 426,303 : x
2. Step 2: Convert to fraction form
   207,499.50/426,303 = 426,303/x
3. Step 3: Cross multiply
   207,499.50x = 426,303 × 426,303
4. Step 4: Simplify right side
   207,499.50x = 181,734,247,809
5. Step 5: Solve for x
   x = 181,734,247,809/207,499.50
6. Step 6: Final answer
   x = 875,829.81