Finding the Third Proportional to 191,622 and 403,086

Step by Step Solution

1. Step 1: Write the proportion equation
   191,622 : 403,086 = 403,086 : x
2. Step 2: Convert to fraction form
   191,622/403,086 = 403,086/x
3. Step 3: Cross multiply
   191,622x = 403,086 × 403,086
4. Step 4: Simplify right side
   191,622x = 162,478,323,396
5. Step 5: Solve for x
   x = 162,478,323,396/191,622
6. Step 6: Final answer
   x = 847,910.59