Finding the Third Proportional to 9,147.94 and 21,358.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,147.94 : 21,358.69 = 21,358.69 : x
2. Step 2: Convert to fraction form
   9,147.94/21,358.69 = 21,358.69/x
3. Step 3: Cross multiply
   9,147.94x = 21,358.69 × 21,358.69
4. Step 4: Simplify right side
   9,147.94x = 456,193,531.72
5. Step 5: Solve for x
   x = 456,193,531.72/9,147.94
6. Step 6: Final answer
   x = 49,868.46