Finding the Third Proportional to 93,384 and 199,890

Step by Step Solution

1. Step 1: Write the proportion equation
   93,384 : 199,890 = 199,890 : x
2. Step 2: Convert to fraction form
   93,384/199,890 = 199,890/x
3. Step 3: Cross multiply
   93,384x = 199,890 × 199,890
4. Step 4: Simplify right side
   93,384x = 39,956,012,100
5. Step 5: Solve for x
   x = 39,956,012,100/93,384
6. Step 6: Final answer
   x = 427,867.86