Finding the Third Proportional to 90,789 and 192,501

Step by Step Solution

1. Step 1: Write the proportion equation
   90,789 : 192,501 = 192,501 : x
2. Step 2: Convert to fraction form
   90,789/192,501 = 192,501/x
3. Step 3: Cross multiply
   90,789x = 192,501 × 192,501
4. Step 4: Simplify right side
   90,789x = 37,056,635,001
5. Step 5: Solve for x
   x = 37,056,635,001/90,789
6. Step 6: Final answer
   x = 408,162.17