Finding the Third Proportional to 21,157 and 45,961.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,157 : 45,961.25 = 45,961.25 : x
2. Step 2: Convert to fraction form
   21,157/45,961.25 = 45,961.25/x
3. Step 3: Cross multiply
   21,157x = 45,961.25 × 45,961.25
4. Step 4: Simplify right side
   21,157x = 2,112,436,501.56
5. Step 5: Solve for x
   x = 2,112,436,501.56/21,157
6. Step 6: Final answer
   x = 99,845.75