Finding the Third Proportional to 191,060 and 404,880

Step by Step Solution

1. Step 1: Write the proportion equation
   191,060 : 404,880 = 404,880 : x
2. Step 2: Convert to fraction form
   191,060/404,880 = 404,880/x
3. Step 3: Cross multiply
   191,060x = 404,880 × 404,880
4. Step 4: Simplify right side
   191,060x = 163,927,814,400
5. Step 5: Solve for x
   x = 163,927,814,400/191,060
6. Step 6: Final answer
   x = 857,991.28