Finding the Third Proportional to 88,810 and 193,890

Step by Step Solution

1. Step 1: Write the proportion equation
   88,810 : 193,890 = 193,890 : x
2. Step 2: Convert to fraction form
   88,810/193,890 = 193,890/x
3. Step 3: Cross multiply
   88,810x = 193,890 × 193,890
4. Step 4: Simplify right side
   88,810x = 37,593,332,100
5. Step 5: Solve for x
   x = 37,593,332,100/88,810
6. Step 6: Final answer
   x = 423,300.67