Finding the Third Proportional to 50,623.50 and 109,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,623.50 : 109,987.50 = 109,987.50 : x
2. Step 2: Convert to fraction form
   50,623.50/109,987.50 = 109,987.50/x
3. Step 3: Cross multiply
   50,623.50x = 109,987.50 × 109,987.50
4. Step 4: Simplify right side
   50,623.50x = 12,097,250,156.25
5. Step 5: Solve for x
   x = 12,097,250,156.25/50,623.50
6. Step 6: Final answer
   x = 238,965.11