Finding the Third Proportional to 51,087 and 111,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,087 : 111,502.50 = 111,502.50 : x
2. Step 2: Convert to fraction form
   51,087/111,502.50 = 111,502.50/x
3. Step 3: Cross multiply
   51,087x = 111,502.50 × 111,502.50
4. Step 4: Simplify right side
   51,087x = 12,432,807,506.25
5. Step 5: Solve for x
   x = 12,432,807,506.25/51,087
6. Step 6: Final answer
   x = 243,365.39