Finding the Third Proportional to 191,088 and 408,960

Step by Step Solution

1. Step 1: Write the proportion equation
   191,088 : 408,960 = 408,960 : x
2. Step 2: Convert to fraction form
   191,088/408,960 = 408,960/x
3. Step 3: Cross multiply
   191,088x = 408,960 × 408,960
4. Step 4: Simplify right side
   191,088x = 167,248,281,600
5. Step 5: Solve for x
   x = 167,248,281,600/191,088
6. Step 6: Final answer
   x = 875,242.20