Finding the Third Proportional to 21,077.50 and 45,872.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,077.50 : 45,872.75 = 45,872.75 : x
2. Step 2: Convert to fraction form
   21,077.50/45,872.75 = 45,872.75/x
3. Step 3: Cross multiply
   21,077.50x = 45,872.75 × 45,872.75
4. Step 4: Simplify right side
   21,077.50x = 2,104,309,192.56
5. Step 5: Solve for x
   x = 2,104,309,192.56/21,077.50
6. Step 6: Final answer
   x = 99,836.75