Finding the Third Proportional to 21,091.50 and 45,874.13

Step by Step Solution

1. Step 1: Write the proportion equation
   21,091.50 : 45,874.13 = 45,874.13 : x
2. Step 2: Convert to fraction form
   21,091.50/45,874.13 = 45,874.13/x
3. Step 3: Cross multiply
   21,091.50x = 45,874.13 × 45,874.13
4. Step 4: Simplify right side
   21,091.50x = 2,104,435,344.52
5. Step 5: Solve for x
   x = 2,104,435,344.52/21,091.50
6. Step 6: Final answer
   x = 99,776.47