Finding the Third Proportional to 21,400.14 and 51,783.21

Step by Step Solution

1. Step 1: Write the proportion equation
   21,400.14 : 51,783.21 = 51,783.21 : x
2. Step 2: Convert to fraction form
   21,400.14/51,783.21 = 51,783.21/x
3. Step 3: Cross multiply
   21,400.14x = 51,783.21 × 51,783.21
4. Step 4: Simplify right side
   21,400.14x = 2,681,500,328.16
5. Step 5: Solve for x
   x = 2,681,500,328.16/21,400.14
6. Step 6: Final answer
   x = 125,302.95