Finding the Third Proportional to 21,688.38 and 47,528.65

Step by Step Solution

1. Step 1: Write the proportion equation
   21,688.38 : 47,528.65 = 47,528.65 : x
2. Step 2: Convert to fraction form
   21,688.38/47,528.65 = 47,528.65/x
3. Step 3: Cross multiply
   21,688.38x = 47,528.65 × 47,528.65
4. Step 4: Simplify right side
   21,688.38x = 2,258,972,422.30
5. Step 5: Solve for x
   x = 2,258,972,422.30/21,688.38
6. Step 6: Final answer
   x = 104,155.87