Finding the Third Proportional to 21,085.50 and 45,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,085.50 : 45,091.50 = 45,091.50 : x
2. Step 2: Convert to fraction form
   21,085.50/45,091.50 = 45,091.50/x
3. Step 3: Cross multiply
   21,085.50x = 45,091.50 × 45,091.50
4. Step 4: Simplify right side
   21,085.50x = 2,033,243,372.25
5. Step 5: Solve for x
   x = 2,033,243,372.25/21,085.50
6. Step 6: Final answer
   x = 96,428.51