Finding the Third Proportional to 21,390.75 and 45,596.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,390.75 : 45,596.25 = 45,596.25 : x
2. Step 2: Convert to fraction form
   21,390.75/45,596.25 = 45,596.25/x
3. Step 3: Cross multiply
   21,390.75x = 45,596.25 × 45,596.25
4. Step 4: Simplify right side
   21,390.75x = 2,079,018,014.06
5. Step 5: Solve for x
   x = 2,079,018,014.06/21,390.75
6. Step 6: Final answer
   x = 97,192.39