Finding the Third Proportional to 21,400.45 and 45,768.80

Step by Step Solution

1. Step 1: Write the proportion equation
   21,400.45 : 45,768.80 = 45,768.80 : x
2. Step 2: Convert to fraction form
   21,400.45/45,768.80 = 45,768.80/x
3. Step 3: Cross multiply
   21,400.45x = 45,768.80 × 45,768.80
4. Step 4: Simplify right side
   21,400.45x = 2,094,782,767.39
5. Step 5: Solve for x
   x = 2,094,782,767.39/21,400.45
6. Step 6: Final answer
   x = 97,884.97