Finding the Third Proportional to 42,315 and 100,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,315 : 100,249.50 = 100,249.50 : x
2. Step 2: Convert to fraction form
   42,315/100,249.50 = 100,249.50/x
3. Step 3: Cross multiply
   42,315x = 100,249.50 × 100,249.50
4. Step 4: Simplify right side
   42,315x = 10,049,962,250.25
5. Step 5: Solve for x
   x = 10,049,962,250.25/42,315
6. Step 6: Final answer
   x = 237,503.54