Finding the Third Proportional to 191,810 and 417,940

Step by Step Solution

1. Step 1: Write the proportion equation
   191,810 : 417,940 = 417,940 : x
2. Step 2: Convert to fraction form
   191,810/417,940 = 417,940/x
3. Step 3: Cross multiply
   191,810x = 417,940 × 417,940
4. Step 4: Simplify right side
   191,810x = 174,673,843,600
5. Step 5: Solve for x
   x = 174,673,843,600/191,810
6. Step 6: Final answer
   x = 910,660.78