Finding the Third Proportional to 4,688.50 and 10,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,688.50 : 10,155.50 = 10,155.50 : x
2. Step 2: Convert to fraction form
   4,688.50/10,155.50 = 10,155.50/x
3. Step 3: Cross multiply
   4,688.50x = 10,155.50 × 10,155.50
4. Step 4: Simplify right side
   4,688.50x = 103,134,180.25
5. Step 5: Solve for x
   x = 103,134,180.25/4,688.50
6. Step 6: Final answer
   x = 21,997.27