Finding the Third Proportional to 21,091.78 and 45,874.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,091.78 : 45,874.03 = 45,874.03 : x
2. Step 2: Convert to fraction form
   21,091.78/45,874.03 = 45,874.03/x
3. Step 3: Cross multiply
   21,091.78x = 45,874.03 × 45,874.03
4. Step 4: Simplify right side
   21,091.78x = 2,104,426,743.13
5. Step 5: Solve for x
   x = 2,104,426,743.13/21,091.78
6. Step 6: Final answer
   x = 99,774.73