Finding the Third Proportional to 191,739 and 416,610

Step by Step Solution

1. Step 1: Write the proportion equation
   191,739 : 416,610 = 416,610 : x
2. Step 2: Convert to fraction form
   191,739/416,610 = 416,610/x
3. Step 3: Cross multiply
   191,739x = 416,610 × 416,610
4. Step 4: Simplify right side
   191,739x = 173,563,892,100
5. Step 5: Solve for x
   x = 173,563,892,100/191,739
6. Step 6: Final answer
   x = 905,209.12