Finding the Third Proportional to 21,180.45 and 45,847.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,180.45 : 45,847.76 = 45,847.76 : x
2. Step 2: Convert to fraction form
   21,180.45/45,847.76 = 45,847.76/x
3. Step 3: Cross multiply
   21,180.45x = 45,847.76 × 45,847.76
4. Step 4: Simplify right side
   21,180.45x = 2,102,016,896.43
5. Step 5: Solve for x
   x = 2,102,016,896.43/21,180.45
6. Step 6: Final answer
   x = 99,243.28