Finding the Third Proportional to 21,667.50 and 47,115

Step by Step Solution

1. Step 1: Write the proportion equation
   21,667.50 : 47,115 = 47,115 : x
2. Step 2: Convert to fraction form
   21,667.50/47,115 = 47,115/x
3. Step 3: Cross multiply
   21,667.50x = 47,115 × 47,115
4. Step 4: Simplify right side
   21,667.50x = 2,219,823,225
5. Step 5: Solve for x
   x = 2,219,823,225/21,667.50
6. Step 6: Final answer
   x = 102,449.44