Finding the Third Proportional to 89,987.50 and 196,923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,987.50 : 196,923.50 = 196,923.50 : x
2. Step 2: Convert to fraction form
   89,987.50/196,923.50 = 196,923.50/x
3. Step 3: Cross multiply
   89,987.50x = 196,923.50 × 196,923.50
4. Step 4: Simplify right side
   89,987.50x = 38,778,864,852.25
5. Step 5: Solve for x
   x = 38,778,864,852.25/89,987.50
6. Step 6: Final answer
   x = 430,936.13